adj.

Beyond question or doubt. See synonyms at authentic.

unquestionability un·ques'tion·a·bil'i·ty or un'ques'tion·a·ble·ness n.
unquestionably un·ques'tion·a·bly adv.

adjective

1. Established beyond a doubt: certain, hard, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefutable, positive, sure, unassailable, undeniable, undisputable. See certain/uncertain, true/false.
2. Without any doubt: clear, clear-cut, decided, definite, distinct, pronounced. See certain/uncertain.
3. Not counterfeit or copied: actual, authentic, bona fide, genuine, good, indubitable, original, real, true, undoubted. See true/false.

adj

Definition: definite; beyond doubt
Antonyms: doubtful, indefinite, questionable, uncertain, unsure

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Note: click on a word meaning below to see its connections and related words.

The adjective has 3 meanings:

Meaning #1: impossible to question
  Antonym: questionable (meaning #1)

Meaning #2: not counterfeit or copied
  Synonyms: authentic, bona fide, veritable

Meaning #3: not open to question

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Dansk (Danish)
adj. - utvivlsom, ubestridelig

Nederlands (Dutch)
ontwijfelbaar

Français (French)
adj. - incontestable

Deutsch (German)
adj. - unbezweifelbar, unbestritten, unanfechtbar

Ελληνική (Greek)
adj. - βέβαιος, αναμφισβήτητος

Italiano (Italian)
indubitabile

Português (Portuguese)
adj. - inquestionável

Русский (Russian)
неоспоримый

Español (Spanish)
adj. - incuestionable, innegable

Svenska (Swedish)
adj. - obestridlig

中文（简体） (Chinese (Simplified))
无疑问的, 无可挑剔的, 确实的

中文（繁體） (Chinese (Traditional))
adj. - 無疑問的, 無可挑剔的, 確實的

한국어 (Korean)
adj. - 의심할 여지가 없는, 나무랄 데 없는, 명확한

日本語 (Japanese)
adj. - 疑問の余地のない, 確かな, 疑いのない

العربيه (Arabic)
‏(صفه) لا يمكن الجدال فيه, لا مراء فيه, اكيد‏

עברית (Hebrew)
adj. - ‮שאינו מוטל בספק, ודאי‬

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