What's the difference between invaluable and unvaluable?

Invaluable


Definition:

  • (a.) Valuable beyond estimation; inestimable; priceless; precious.

Example Sentences:

  • (1) It facilitated the acquisition of quantitative velocity information with standard Doppler ultrasound techniques by identifying areas of high velocity or turbulent flow and was invaluable in the assessment of anomalous pulmonary venous drainage occurring either as an isolated anomaly or in conjunction with complex intracardiac lesions.
  • (2) A 1-month stay in Bangladesh at the Dhaka Shishu Hospital, made possible by the Canadian Association of Paediatric Surgeons, afforded an invaluable opportunity to be involved in Pediatric Surgery in such a setting.
  • (3) With United having failed to claim an invaluable away goal they have to win by a margin of three in the return leg at Old Trafford on 19 March.
  • (4) Treasury secretary Tim Geithner called her an "exceptional talent" whose broad experience would "provide invaluable leadership for this indispensable institution at a critical time for the global economy".
  • (5) However, the use of systemic treatment with psychoactive drugs used widely in clinical practice, in carefully controlled, behavioural and and endocrine experiments, is likely to provide invaluable information on where and how to investigate the neural mechanisms involved.
  • (6) The clinical diagnosis is sometimes difficult and only the computerized axial tomography may be of invaluable help.
  • (7) The nucleotide sequences presented thus enable us to discriminate the tyrosinase gene from its related sequences and are invaluable for a gene diagnosis of oculocutaneous albinism.
  • (8) The DNA homology data indicate that phenotypic information alone, including antigenic serotypic data, is not always adequate for species designation among the ureaplasmas and that comparative analyses of the genome provide invaluable data for establishing new species.
  • (9) The tracer techniques thus provide invaluable information about platelet-fibrin deposition, its organization and dissolution, and for development of less thrombogenic surfaces for use in cardiovascular prostheses.
  • (10) Surgical evaluations, including examinations under anesthesia, staging laparotomy and second look laparotomy were also invaluable in assessing disease status.
  • (11) In addition, the ELISA was equally capable of identifying elevated serum EH in patients with HCC, and should prove invaluable in evaluating the effectiveness of serum EH levels as a marker for HCC.
  • (12) Tottenham must finance their new £400m stadium, into which they intend to move in 2018-19, and so Pochettino’s ability to succeed without heavy backing on the market is invaluable.
  • (13) The US military source described Mohammed Basardah as an "invaluable" source who had shown "exceptional co-operation", but lawyers for other inmates claim his evidence is unreliable.
  • (14) Thus, we concluded that CT is not only a highly sensitive and accurate modality, but also an invaluable radiological diagnostic tool in the evaluation of blunt abdominal injury.
  • (15) This article reviews the conception and development of this invaluable contribution to our understanding of health and disease.
  • (16) The US military describe him as an "invaluable" source who has shown "exceptional co-operation" and shared his "vast knowledge" with the camp authorities.
  • (17) The intensity and duration of the interventions, the extensive outreach efforts to the family and the dedication and commitment of the staff are not easily replicated but invaluable in helping providers and researchers understand to what extent the impact of severe deprivations and risk can be mediated and potential damage to the newborn prevented.
  • (18) The autopsy of victims in such circumstances, if properly conducted, can yield invaluable trace evidence leading to the identification of the explosive device.
  • (19) In our experience CA-125 is an invaluable indicator of the clinical status of the patient and could be a new tumor marker in patients with MGCT.
  • (20) This Fogarty International Conference has been invaluable because of the diverse backgrounds of the distinguished participants which it attracted.

Unvaluable


Definition:

  • (a.) Invaluable; being beyond price.
  • (a.) Not valuable; having little value.

Example Sentences:

  • (1) The fact that so many are now turning their their backs on a career in the NHS is an appalling reflection on how unvalued the profession feels.” There are fears that next year’s figures could be even worse as a result of the bitter dispute between junior doctors in England and Jeremy Hunt, the health secretary.
  • (2) This is an unvaluable advantage, especially if this contributes to maintain or restore an often precarious health.
  • (3) It’s as if the presence of the building is valued and gives this area of the city an identity, while its actual fabric remains unvalued, not worthy of the investment to rectify and revive it.
  • (4) Whatever is unexamined with marks and tables is unvalued under the Gove whip.
  • (5) There is a deep contradiction in the attitudes of a society which celebrates equality in principle yet treats some people, especially the poor and vulnerable, as unwanted, unvalued and unnoticed,” the bishops write.
  • (6) Many doctors in training feel alienated, unvalued and deeply frustrated and this extends far beyond the current contractual dispute.

Words possibly related to "unvaluable"