| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | up in the air |
| Synonyms: | ambiguous, deficient, incomplete, indecisive, indeterminate, lacking, open, uncertain, unconvincing, undecided, uneventful, unfateful, unfinished, unsatisfactory, unsettled, vague |
| Antonyms: | certain, conclusive, decisive, definite, sure |
| Main Entry: | ambivalent |
| Part of Speech: | adjective |
| Definition: | conflicting |
| Synonyms: | clashing, contradictory, debatable, doubtful, equivocal, fluctuating, hesitant, inconclusive, irresolute, mixed, opposed, uncertain, undecided, unresolved, unsure, vacillating, warring, wavering |
| Antonyms: | certain, definite, resolved, settled, sure, unequivocal |
| Main Entry: | circumstantial |
| Part of Speech: | adjective |
| Definition: | incidental |
| Synonyms: | amplified, coincidental, concomitant, concurrent, conjectural, contingent, detailed, environmental, fortuitous, inconclusive, indirect, inferential, presumptive, provisional, uncertain |
| Antonyms: | direct |
| Main Entry: | conditional |
| Part of Speech: | adjective |
| Definition: | dependent |
| Synonyms: | codicillary, contingent, depending on, fortuitous, granted on certain terms, guarded, iffy, incidental, inconclusive, limited, modified, not absolute, obscure, provisional, provisory, qualified, relative, reliant, relying on, restricted, restrictive, subject to, tentative, uncertain, with grain of salt, with reservations, with strings attached |
| Antonyms: | independent, unconditional, unlimited, unqualified, unrestricted |
| Main Entry: | doubtful |
| Part of Speech: | adjective |
| Definition: | questionable, unclear |
| Synonyms: | ambiguous, borderline, chancy, clouded, contingent, debatable, dicey, disreputable, doubtable, dubious, dubitable, equivocal, far-fetched, fat chance, fishy, hazardous, hazy, iffy, impugnable, inconclusive, indecisive, indefinite, indeterminate, indistinct, insecure, long shot, obscure, on thin ice, open, pending, precarious, problematic, shady, sneaky*, speculative, suspect, suspicious, touch-and-go, touchy, uncertain, unconfirmed, undecided, uneasy, unsettled, unstable, unsure, up for grabs |
| Notes: | a person is capable of doubting, whereas a thing is dubitable; dubious, unlike doubtful, carries the connotation of suspicion |
| Antonyms: | certain, clear, confirmed, decided, definite, exact, resolved, settled, unquestionable |
| Main Entry: | illogical |
| Part of Speech: | adjective |
| Definition: | not making sense |
| Synonyms: | absurd, casuistic, cockeyed, fallacious, false, fatuous, faulty, groundless, hollow, implausible, inconclusive, incongruous, inconsequent, inconsistent, incorrect, invalid, irrational, irrelevant, mad, meaningless, not following, nutty, off the wall, preposterous, screwy, self-contradictory, senseless, sophistic, sophistical, specious, spurious, unconnected, unproved, unreasonable, unscientific, unsound, unsubstantial, untenable, wacky, without basis, without foundation |
| Antonyms: | correct, logical, meaningful, rational, reasonable, right, sensible |
| Main Entry: | indecisive |
| Part of Speech: | adjective |
| Definition: | uncertain, indefinite |
| Synonyms: | astraddle, changeable, doubtful, faltering, halting, hemming and hawing, hesitant, hesitating, hot and cold, inconclusive, indeterminate, irresolute, of two minds, on the fence, tentative, unclear, undecided, undetermined, uneventful, unsettled, unstable, vacillating, waffling, wavering, weak-kneed, wishy-washy |
| Antonyms: | certain, decisive, definite, deliberate, determined, sure |
| Main Entry: | indeterminate |
| Part of Speech: | adjective |
| Definition: | uncertain, vague |
| Synonyms: | borderless, general, imprecise, inconclusive, indefinite, indistinct, inexact, undefined, undetermined, unfixed, unspecified, unstipulated |
| Notes: | indeterminable means impossible to decide, fix, or measure while indeterminate means unclear or vague |
| Antonyms: | certain, definite, determined, exact, fixed, measurable, sure |
| Main Entry: | uneventful |
| Part of Speech: | adjective |
| Definition: | monotonous, dull |
| Synonyms: | boring, common, commonplace, humdrum, inconclusive, indecisive, ordinary, prosaic, quiet, routine, tedious, unexceptional, unexciting, unfateful, uninteresting, unmemorable, unnoteworthy, unremarkable, unvaried |
| Antonyms: | eventful, exciting, extraordinary, memorable |