Standard Lemma guide

questionable

adj · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈkwɛst͡ʃənəbl̩/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: K W EH1 S CH AH0 N AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Problematic; open to doubt or challenge.

Definition source: English Wiktionary via Wiktextract

Examples

  • It is questionable if the universe is open or closed.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of dubious respectability or morality.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Inviting questions; inviting inquiry.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

subject to question

Definition source: Princeton WordNet 3.0

Examples

  • questionable motives
  • a questionable reputation
  • a fire of questionable origin

Meaning relationships

Synonyms: none provided

Antonyms: unquestionable

5

adjective satellite

Meaning 5

able to be refuted

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: refutable, confutable, confutative

Antonyms: none provided

History

Etymology

Etymology tree English question Proto-Indo-European *-tḗr Proto-Indo-European *-dhlom Proto-Indo-European *-dhlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English questionable From question + -able.

Across languages

Translations

73 source translations are retained for this English entry.

  • Belarusian: спрэчны (sprečny) — problematic; open to doubt or challenge
  • Bulgarian: съмнителен (sǎmnitelen) — problematic; open to doubt or challenge
  • Bulgarian: спорен (sporen) — problematic; open to doubt or challenge
  • Catalan: qüestionable — problematic; open to doubt or challenge
  • Chinese Mandarin: 可疑的 (kěyí de) — problematic; open to doubt or challenge
  • Czech: diskutabilní — problematic; open to doubt or challenge
  • Danish: tvivlsom — problematic; open to doubt or challenge
  • Dutch: twijfelachtig — problematic; open to doubt or challenge
  • Finnish: kyseenalainen — problematic; open to doubt or challenge
  • French: discutable — problematic; open to doubt or challenge
  • Georgian: სადაო (sadao) — problematic; open to doubt or challenge
  • German: fragwürdig — problematic; open to doubt or challenge
  • Greek: αμφισβητήσιμος (amfisvitísimos) — problematic; open to doubt or challenge
  • Hungarian: kétséges — problematic; open to doubt or challenge
  • Italian: problematico — problematic; open to doubt or challenge
  • Italian: questionabile — problematic; open to doubt or challenge
  • Italian: controverso — problematic; open to doubt or challenge
  • Italian: discutibile — problematic; open to doubt or challenge
  • Italian: opinabile — problematic; open to doubt or challenge
  • Japanese: 疑わしい (utagawashii) — problematic; open to doubt or challenge
  • Macedonian: спо́рен (spóren) — problematic; open to doubt or challenge
  • Persian: سؤالبرانگیز (so'âl-bar-angiz) — problematic; open to doubt or challenge
  • Plautdietsch: froaglich — problematic; open to doubt or challenge
  • Plautdietsch: bedenkjlich — problematic; open to doubt or challenge
  • Polish: wątpliwy — problematic; open to doubt or challenge
  • Polish: sporny — problematic; open to doubt or challenge
  • Polish: kontrowersyjny — problematic; open to doubt or challenge
  • Portuguese: questionável — problematic; open to doubt or challenge
  • Portuguese: contestável — problematic; open to doubt or challenge
  • Portuguese: duvidoso — problematic; open to doubt or challenge
  • Portuguese: problemático — problematic; open to doubt or challenge
  • Romanian: discutabil — problematic; open to doubt or challenge
  • Russian: спо́рный (spórnyj) — problematic; open to doubt or challenge
  • Serbo-Croatian: ùpitan — problematic; open to doubt or challenge
  • Swedish: tveksam — problematic; open to doubt or challenge
  • Swedish: tvivelaktig — problematic; open to doubt or challenge
  • Ottoman Turkish: شبههلو (şübheli) — problematic; open to doubt or challenge
  • Azerbaijani: şübhəli — of dubious respectability or morality
  • Bulgarian: съмнителен (sǎmnitelen) — of dubious respectability or morality
  • Catalan: criticable — of dubious respectability or morality
  • Catalan: sospitós — of dubious respectability or morality
  • Chinese Mandarin: 可疑的 (kěyí de) — of dubious respectability or morality
  • Dutch: twijfelachtig — of dubious respectability or morality
  • Dutch: verdacht — of dubious respectability or morality
  • Finnish: kyseenalainen — of dubious respectability or morality
  • French: douteux — of dubious respectability or morality
  • Georgian: საეჭვო (saeč̣vo) — of dubious respectability or morality
  • German: fragwürdig — of dubious respectability or morality
  • German: zwiespältig — of dubious respectability or morality
  • German: gewagt — of dubious respectability or morality
  • German: verwegen — of dubious respectability or morality
  • Hungarian: megkérdőjelezhető — of dubious respectability or morality
  • Italian: dubbio — of dubious respectability or morality
  • Japanese: 疑わしい (utagawashii) — of dubious respectability or morality
  • Macedonian: сомни́телен (somnítelen) — of dubious respectability or morality
  • Polish: kontrowersyjny — of dubious respectability or morality
  • Portuguese: questionável — of dubious respectability or morality
  • Portuguese: dúbio — of dubious respectability or morality
  • Portuguese: suspeito — of dubious respectability or morality
  • Russian: сомни́тельный (somnítelʹnyj) — of dubious respectability or morality
  • Serbo-Croatian: ùpitan — of dubious respectability or morality
  • Spanish: dudoso — of dubious respectability or morality
  • Spanish: cuestionable — of dubious respectability or morality
  • Spanish: controvertible — of dubious respectability or morality
  • Spanish: sospechoso — of dubious respectability or morality
  • Swedish: tveksam — of dubious respectability or morality
  • Swedish: tvivelaktig — of dubious respectability or morality
  • Swedish: dubiös — of dubious respectability or morality
  • Swedish: suspekt — of dubious respectability or morality
  • Swedish: misstänkt — of dubious respectability or morality
  • Swedish: diskutabel — of dubious respectability or morality
  • Swedish: disputabel — of dubious respectability or morality
  • Swedish: diskuterbar — of dubious respectability or morality