iffiest
Least likely certain
Iffiest is the superlative of iffy, meaning the most uncertain, doubtful, or questionable among options being compared: That's the iffiest part of the whole plan.
It suggests something is more precarious or unreliable than alternatives: Of all my grades, chemistry is the iffiest.
Dangerously insecure
- diceyUncertain and hazardous
- touch-and-goUncertain and risky
- chancyInvolving uncertain outcome
- hazardousLikely to cause injury
perilous · treacherous · gamble · dangerous · unsafe · venture · bet · jeopardy
Of uncertain reliability
- skepticalInclined to question claims
- uncertainNot firmly known
- unconvincingNot able to persuade
- unreliableNot consistently performing
disputable · debatable · equivocal · inconclusive · unconfirmed · speculative · unproven · suspect
Trembling or unstable
- wobblyTending to teeter
- unsteadyLacking balance or stability
- teeteringUnstably balanced, nearly falling
- ricketyUnsteady, liable to collapse
volatile · unpredictable · erratic · fluctuating · precarious · unreliable · inconsistent · temperamental
Not firmly known
- unsureLacking confidence or certainty
- unsettledNot yet resolved
- unresolvedLacking final determination
- undeterminedNot yet established
open · pending · tentative · ambivalent · wavering · torn · indeterminate · indefinite
precarious
Dangerously insecure
- diceyUncertain and hazardous
- touch-and-goUncertain and risky
- chancyInvolving uncertain outcome
hazardous · perilous · treacherous · gamble · dangerous · unsafe · venture · bet · jeopardy · dodgy
dubious
Of uncertain reliability
- skepticalInclined to question claims
- uncertainNot firmly known
- unconvincingNot able to persuade
unreliable · disputable · debatable · equivocal · inconclusive · unconfirmed · speculative · unproven · suspect · dodgy
shaky
Trembling or unstable
- wobblyTending to teeter
- unsteadyLacking balance or stability
- teeteringUnstably balanced, nearly falling
rickety · volatile · unpredictable · erratic · fluctuating · precarious · unreliable · inconsistent · temperamental · variable
uncertain
Not firmly known
- unsureLacking confidence or certainty
- unsettledNot yet resolved
- unresolvedLacking final determination
undetermined · open · pending · tentative · ambivalent · wavering · torn · indeterminate · indefinite · open-ended