(a.) Not settled in opinion; undetermined; wavering; hesitating in belief; also used, metaphorically, of the body when its action is affected by such a state of mind; as, we are doubtful of a fact, or of the propriety of a measure.
(a.) Admitting of doubt; not obvious, clear, or certain; questionable; not decided; not easy to be defined, classed, or named; as, a doubtful case, hue, claim, title, species, and the like.
(a.) Characterized by ambiguity; dubious; as, a doubtful expression; a doubtful phrase.
(a.) Of uncertain issue or event.
(a.) Fearful; apprehensive; suspicious.
Example Sentences:
(1) In a further study 1082 patients with a negative or doubtful result of the physical examination were investigated using ultrasound.
(2) p-Chlorophenylalanine (PCPA) also reduced the response to levodopa but the usefulness of PCPA as an inhibitor of 5HT synthesis in these experiments in doubtful since it also inhibited the hypoglycaemic effects of 5HTP and i.c.v.
(3) There is no doubt that new techniques in molecular biology will continue to evolve so that the goal of gene therapy for many disorders may be possible in the future.
(4) I never had any doubt that the vast majority of people engaged in "business" are not the exploiters but the exploited.
(5) There is no doubt that psychological, reactive and environmental factors do play a certain role too.
(6) Paul Doyle Kick-off Sunday midday Venue St Mary’s Stadium Last season Southampton 2 Leicester City 2 Live Sky Sports 1 Referee Michael Oliver This season G 18, Y 60, R 1, 3.44 cards per game Odds H 5-6 A 4-1 D 5-2 Southampton Subs from Taylor, Martina, Stephens, Davis, Rodriguez, Sims, Ward-Prowse Doubtful Bertrand, Davis, Van Dijk (all match fitness) Injured Boufal (knee, Jan), Hesketh (ankle, Feb), Targett (hamstring, Feb), Austin (shoulder, Mar), Pied (knee, Jun), Gardos (knee, unknown) Suspended None Form DWLLLL Discipline Y37 R2 Leading scorer Austin 6 Leicester City Subs from Zieler, Hamer, Wasilewski, Gray, Fuchs, James, Okazaki, Hernández, Kapustka, King Doubtful None Injured None Suspended None Unavailable Amartey, Mahrez, Slimani (Africa Cup of Nations) Form LDLWDL Discipline Y44 R1 Leading scorers Slimani, Vardy 5
(7) Without that, and without undertaking big changes, the service's future may fall into doubt, he says.
(8) This is welcome news but it needs to be borne in mind that the manufacturing sector is still far from racing ahead and serious doubts remain about the strength of demand for manufactured goods over the medium term, particularly once stimulative measures start being withdrawn.
(9) Doubts about Hinkley Point have deepened after a detailed report by HSBC’s energy analysts described eight key challenges to the project, which will be built by the state-backed French firm EDF and be part-financed by investment from China .
(10) The mean age of gravidae with doubtful smears is about 6 years beyond the mean age of gravidae with positive smears.
(11) I have no doubt that both the Conservative and Labour parties will maintain throughout the course of the election campaign their determination to build four submarines and 160 warheads,” he says.
(12) There is little doubt that when it opens next Thursday, One New Change will be jam-packed with City workers and tourists.
(13) We feel that they, as presented, leave serious doubt as to the validity of their conclusions.
(14) Contact guidance has been suggested to direct NC cells ventrally in the trunk, but this has been subject to doubt (see Newgreen and Erickson, 1986, Int.
(15) Although “there are serious questions and doubts in our minds over the government’s seven-day working agenda … it isn’t clear what this strike action is for and what the position of the BMA is now,” he told the Guardian.
(16) There is no doubt that people were killed quite deliberately by police officers.
(17) Other critics, even if they were unsure of the lasting relevance, were willing to give Tillmans the benefit of the doubt.
(18) We interpret this exaggerated positive attitude as an attempt to overcome inner fears, doubts and ambivalences.
(19) Another forward, Manchester United's Danny Welbeck, is a major doubt for the game with a knee complaint.
(20) Coghlin said: “There is no doubt that, as a consequence of the personalities involved, these proceedings attracted a very considerable degree of media publicity both before and, to a certain degree, subsequent to the trial.
Tentative
Definition:
(a.) Of or pertaining to a trial or trials; essaying; experimental.
(n.) An essay; a trial; an experiment.
Example Sentences:
(1) The pattern of the stressor that causes a change in the pitch can be often identified only tentatively, if there is no additional information.
(2) The tentative diagnosis "neurinoma of the hypoglossal nerve" was confirmed intraoperatively and histologically.
(3) These compounds were tentatively identified as two epimers at C-23 of 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestano-26,23-lactone, which were probably artifacts formed from the corresponding tetrahydroxycholestanoic acids during the procedures for extraction after hydrolysis.
(4) Minimal breast cancer should include lobular carcinoma in situ (lobular neoplasia) and ductal carcinoma in situ regardless of nodal status, and (tentatively) invasive carcinoma smaller than 1 cm in total diameter, if axillary lymph nodes are not involved.
(5) Based on these data, a tentative life cycle for P. carinii in vitro has been proposed.
(6) Investigation of the mechanism of action of the synergistic effect between kanamycin and HA led to the tentative conclusion that potentiation was mediated through an initial alteration of cell permeability by the aminoglycoside antibiotic which permitted accumulation of each of the six HA into the cell, at which point each interacted with pyridoxal phosphate.
(7) Taking this into account, it was tentatively concluded that the mature NDP kinase consists of 147 amino acid residues with a molecular weight of 16,724.
(8) Based on these characteristics, we tentatively ascribe this activity to hepatic very low density lipoprotein, the serum counterpart of which is known to express many immunoregulatory properties.
(9) A tentative scheme of EBV-induced pathogenesis is discussed.
(10) Two new alleles, tentatively designated ORM1*14 and ORM2*13, were identified.
(11) In a previous paper, the main mutagenic compound isolated from the model reaction system D-fructose, DL-alanine and creatinine was tentatively identified as 4,8-DiMeIQx.
(12) Thus it can be tentatively suggested that it is prokallikrein A which is secreted into the pancreatic juice and represents the physiologically important zymogen.
(13) This epithelial cell was tentatively identified as primitive extraembryonic endoderm by its ultrastructural appearance and its possession of cytokeratin intermediate filaments.
(14) Gas chromatographic-mass spectrometric analysis of aglycones released from this conjugate revealed the presence of 3 beta, 5 alpha-tetrahydroaldosterone and an another aglycone, tentatively identified as 21-deoxy-tetrahydroaldosterone.
(15) Iron deficiency has been tentatively excluded as a cause of this anaemia by measurement of serum ferritin levels.
(16) Meiosis is too complex to have arisen at once full blown and a stepwise scheme is proposed for its evolution, where each step is believed to have provided an immediate selective advantage: (1) The first step in this tentative sequence is the development of a haploidization process by means of a rapid series of mitotic non-disjunctions, turned on under conditions where haploidy is favored.
(17) Results of a tentative estimates as to the economic advantages offered by the experimental ASPEP and conditions required to achieve the maximum economic effect by using this system are given.
(18) In 6 cases only a tentative diagnosis of lymphoepitheloid cell malignant lymphoma could be made.
(19) Urine from normal children showed a small acid-labile (at 100 degrees C) peak at the ASA position, which we tentatively assign to genuine ASA.
(20) We tentatively suggest that a preferential loss of contrast sensitivity to horizontal gratings might be due to a functional abnormality in the striate cortex that relatively spares the extrastriate cortex.