doubtful[adjective]Synonyms:- unlikely, debatable, dubious, equivocal, improbable, problematic(al), questionable, unclear
- unsure, distrustful, hesitating, in two minds
(informal), sceptical, suspicious, tentative, uncertain, unconvinced, wavering
Antonyms: indubitable
Contrasted words: decisive, open-and-shut, positive, sure, inarguable, incontestable, unarguable, undeniable, undoubted, unquestionable
Related Idioms: at issue, in dispute, in doubt, in question
Related Words: question-begging,
touch-and-go,
chancy,
insecure,
questionable,
speculative,
hazy,
obscure,
unlikely,
contingent,
iffy [TahlilGaran] English Synonym Dictionary ▲
doubt‧ful /ˈdaʊtf
əl/
adjective [
Word Family: adjective:
doubtful, doubtless,
indubitable,
undoubted;
adverb:
doubtfully,
indubitably,
undoubtedly;
noun:
doubt,
doubter;
verb:
doubt]
1. probably not true or not likely to happen:
Prospects for a lasting peace remain doubtful.it is doubtful if/whether It was doubtful whether the patient would survive the operation.it is doubtful that It is doubtful that the missing airmen will ever be found.2. not sure that something is true or right:
‘Everything’s going to be all right, you’ll see.’ Jenny looked doubtful.doubtful if/whether I’m still doubtful whether I should accept this job.doubtful about (doing) something At first we were doubtful about employing Charlie.3. unlikely to be successful:
Already the whole scheme was looking increasingly doubtful.4. probably not good
Synonym : dubious:
Here the tap water is of doubtful quality.—doubtfully adverb [TahlilGaran] Dictionary of Contemporary English ▲