What's the difference between dubious and iffy?

Dubious


Definition:

  • (a.) Doubtful or not settled in opinion; being in doubt; wavering or fluctuating; undetermined.
  • (a.) Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer.
  • (a.) Of uncertain event or issue; as, in dubious battle.

Example Sentences:

  • (1) It’s impossible to automate fully the process of separating truth from falsehood, and it’s dubious to cede such control to for-profit media giants.
  • (2) The draw was enough to take England to the finals in Japan, where Beckham exorcised the demons of four years earlier by scoring the only goal (a dubiously awarded penalty) in the defeat of Argentina.
  • (3) But Blair's address - "history will forgive us" - was a dubious exercise in group therapy: the cheers smacked of pathetic gratitude, as he piously pardoned the legislators, as well as himself, for the catastrophe of Iraq.
  • (4) I drive past buildings that I know, or assume, to house bedsits, their stucco peeling like eczema, their window frames rattling like old bones, and I cannot help myself from picturing the scene within: a dubious pot on an equally dubious single ring, the female in charge of it half-heartedly stirring its contents at the same time as she files her nails, reads an old Vogue, or chats to some distant parent on the telephone.
  • (5) A dubious pattern is emerging of donations through front companies.
  • (6) The relationship of this metabolic aberration to the production of headache still remains dubious for various reasons.
  • (7) During his stints in the Bush and Obama administration Comey has continually taken authoritarian and factually dubious public stances both at odds with responsible public policy and sometimes the law.
  • (8) Today the overestimation of human understanding is reflected in a dogmatic adherence to specific professional or idealogically biased doctrines and in the dubious ideal of a purely empirical science with its limited applicability to mankind.
  • (9) It seems clear that even as we buy cheap clothes with dubious provenance, from an ethical standpoint, people want to do better.
  • (10) Their mechanism is dubious: swelling of mitochondria and intracellular lipidosis, which could signify cellular hypoxia, are rarely present.
  • (11) Imprecise definitions of these complications of necrotizing pancreatitis make inter-institutional comparisons of previously identified data dubious.
  • (12) Critics say this is part of a broader, dubious attempt to appease the Kremlin and boost bilateral trade.
  • (13) In his attempt to justify the unjustifiable, Mr Grieve has clutched at a fragile constitutional doctrine and adopted a deeply dubious legal course.
  • (14) Exporting what appear to be educational success stories is a dubious enterprise, because it is so easy to misread how another country's system works and to discount its cultural background.
  • (15) Observed retrospectively, in some cases death was the result of dubious indication.
  • (16) The Guardian’s own readers’ anthology of dubious deals – crusty rolls 40p, two for £1!
  • (17) Sensitivity (dubious + positive, after exclusion of inadequates) was 0.83 and dependent on histologic type (infiltrating = 0.87, intraductal = 0.68).
  • (18) The vice-president even made repeated trips to CIA headquarters in Langley to bully analysts into producing more hawkish reports, while Rumsfeld’s Pentagon sucked up highly dubious “evidence” from Iraqi exiles and ideological freelancers.
  • (19) This becomes very dubious when they are more numerous.
  • (20) The change in surface tension did not correlate with a change in lung retractive forces or with lung lipid content and was, therefore, of dubious biological significance.

Iffy


Definition:

Example Sentences:

  • (1) Before you know it you can have a few iffy results.
  • (2) Iffy grooming habits are the least of Wolfowitz's worries as he takes on the presidency of the World Bank.
  • (3) If Sampson had a case for arguing that Rafferty’s inital push had been made marginally outside the area, he could have had no complaints when England – due £35,000 per woman bonuses had they lifted the trophy – won a distinctly iffy penalty of their own.
  • (4) The keeper has looked iffy today but letting that in would have made him absolutely whiffy.
  • (5) Arsenal’s players performed a cancan on the pitch at Highbury as fans chanted: “We are unbeatable.” After an iffy first half, they had won 2-1 to complete a full season without defeat in the league.
  • (6) It’s looking certainly more iffy than it did even just a few days ago.
  • (7) It's looking like an iffy pot, or a two cushion escape.
  • (8) Because now Nando's has been caught ploughing money into all manner of legal but morally iffy offshore tax havens, and the fragile castle of ideology that I have painstakingly constructed for myself has crumpled.
  • (9) When they mentioned figures, they were very iffy about whether they were positive or negative.
  • (10) 11.12pm BST Tweets Rory Murphy (@bogotabandit2) so @HunterFelt prediction already looking a bit iffy.
  • (11) Their only post-promotion victory came at Sunderland in August but, after a few slightly iffy performances, Ramírez was back to his elegant, subtly incisive, intelligent best during last Saturday’s encouraging 0-0 draw at Arsenal .
  • (12) Berlind's theory of ovum transmigration in the etiology of tubal pregnancy is revived and brought into line with Iffy's delayed ovulation-reflux hypothesis.
  • (13) In other words: Tonight is your chance to go crazy conspiracy theorists, feel free to examine the game tape surrounding every iffy call as if it were the Zapruder film.
  • (14) It might be one of the oldest methods of preserving fruit, but make sure you put them in an airtight container, and if you've had them for a while, now's the time to use them up – I'm a bit iffy about keeping any ingredient for longer than six months.
  • (15) Jarvis isn't interested in who celebrities are shagging: "People might be a bit iffy, but that's between them and their conscience.
  • (16) He’s the one that’s been very iffy and about his role and what he would like to do about immigration.” Reckless made the comments when he was challenged to spell out what would happen to a Polish plumber if Ukip had its way on Britain leaving the EU.
  • (17) Indeed, according to Jim Ward's account, only an iffy penalty decision kept Rams – Isthmian League Cup winners that season – out of the final against Wimbledon.
  • (18) It was a bit iffy when Garvey got to the bullying (he said "strong-willed" and "tough" too many times, like he'd spent a weekend with Miliband, brainstorming positive terms for "bastard").
  • (19) Everyone: Isn't it a bit iffy hanging around with her again?
  • (20) Asked about calls for an election pact, he said: “The internal wrangling of the Conservative party is no longer my problem … There is something a little bit iffy about the idea of pacts, because it suggests politicians fixing things for their convenience.