| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | not believing |
| Synonyms: | agnostic, baffled, confused, discomposed, disconcerted, distracted, distrustful, disturbed, doubting, dubious, equivocal, faithless, faltering, flustered, hesitant, hesitating, in a quandary, in clouds, in dilemma, indecisive, irresolute, like doubting Thomas, lost, not following, of two minds, perplexed, puzzled, questioning, skeptical, suspicious, tentative, theoretical, troubled, uncertain, unconvinced, undecided, unresolved, unsettled, unsure, vacillating, wavering, without belief |
| Notes: | a person is capable of doubting, whereas a thing is dubitable; dubious, unlike doubtful, carries the connotation of suspicion |
| Antonyms: | believing, certain, confident, convinced, sure, trusting |
| Main Entry: | incredulous |
| Part of Speech: | adjective |
| Definition: | unbelieving |
| Synonyms: | disbelieving, distrustful, doubtful, doubting, dubious, hesitant, mistrustful, questioning, quizzical, show-me, skeptical, suspect, suspicious, uncertain, unconvinced, unsatisfied, wary |
| Notes: | incredible means 'unbelievable' and incredulous means 'unbelieving' |
| Antonyms: | believing, convinced, credulous |
| Main Entry: | skeptical |
| Part of Speech: | adjective |
| Definition: | disbelieving, leery |
| Synonyms: | agnostic, aporetic, cynical, dissenting, doubtful, doubting, dubious, freethinking, hesitating, incredulous, mistrustful, questioning, quizzical, scoffing, show-me, suspicious, unbelieving, unconvinced |
| Antonyms: | believing, devoted, undoubting |
| Main Entry: | unbelieving |
| Part of Speech: | adjective |
| Definition: | skeptical |
| Synonyms: | agnostic, cynical, disbelieving, distrustful, doubtful, doubting, dubious, freethinking, leery, mistrustful, nonbelieving, not born yesterday, questioning, show-me, suspicious, unconvinced |
| Main Entry: | unsure |
| Part of Speech: | adjective |
| Definition: | doubtful, insecure |
| Synonyms: | betwixt and between, borderline, distrustful, dubious, fluctuant, fly-by-night, hesitant, iffy, in a quandary, indecisive, indeterminate, irresolute, lacking, mistrustful, open, problematic, rootless, shaky, skeptical, suspicious, touch and go, unassured, uncertain, unclear, unconfident, unconvinced, undecided, undependable, unreliable, unstable, untrustworthy, untrusty, up for grabs, vacillating, wavering, weak, wimpy, wobbly |
| Antonyms: | certain, definite, secure, sure, undoubted |