indubitable

adjective
/ɪnˈdjuːbɪtəbl/

Meaning

Impossible to doubt; unquestionable.

Example Sentences

It is indubitable that hard work leads to success.

Synonyms

unquestionable, certain, undeniable, indisputable

Antonyms

doubtful, uncertain, questionable

Collocations

indubitable fact, indubitable evidence, indubitable truth

Related Vocabularies

impossible to satisfy; always wanting more
suggesting something supernatural or very strange; unusual
beyond ordinary limits; surpassing or excelling
showing concern for the needs and feelings of others
quiet, restrained, or not openly expressive of feelings
Wary and unwilling to take risks; careful to consider all circumstances.

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