indubitable
UK: ɪnˈdjuːbɪtəb(ə)l | US: ɪnˈduːbɪtəb(ə)l
adj. impossible to doubt; unquestionable
indubitable = in<not> + dubit<doubt> + able<capable of>
- in (Latin prefix): Negation, meaning "not."
- dubit (Latin root): From dubitare, meaning "to doubt."
- able (suffix): Forms adjectives meaning "capable of" or "worthy of."
Etymology Origin:
Derived from Latin indubitabilis, combining in- (not) + dubitare (to doubt) + -abilis (able to be). The word entered Middle English via Old French, retaining its core meaning of "undeniable." The morpheme dubit reflects the Latin root for hesitation or uncertainty, while in- negates it, creating a strong assertion of certainty.
The evidence was indubitable, leaving no room for debate.
Her indubitable talent earned her widespread acclaim.
The scientist presented indubitable proof of the theory.
His loyalty to the team was indubitable.
The artifact’s authenticity was indubitable after carbon dating.