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Definitions

without doubt

ADJECTIVE

without question

Synonyms

WEAK

certain doubtless incontestable indisputable irrefutable sure unmistakable unquestionable

ADVERB

definitely

Synonyms

STRONGEST

absolutely clearly decidedly doubtless easily finally obviously plainly surely undeniably unequivocally unquestionably

WEAK

beyond any doubt categorically doubtlessly explicitly expressly far and away indubitably no ifs ands or buts about it positively specifically unmistakably without fail without question

Antonyms

STRONGEST

doubtedly doubtfully dubiously questionable questionably uncertain

WEAK

indefinitely

ADVERB

doubtless

Synonyms

STRONGEST

absolutely clearly presumably surely undoubtedly unequivocally unquestionably

WEAK

apparently assuredly easily for sure indisputably no ifs ands or buts of course ostensibly positively precisely probably seemingly supposedly truly

Antonyms

STRONGEST

doubtfully indefinite questionably

WEAK

doubted doubtedly dubious improbably questionable uncertain unlikely

ADVERB

far and away

Synonyms

WEAK

by a great deal by far far and wide to the highest degree

ADVERB

indubitably

Synonyms

WEAK

certainly definitely for sure indeed no question of course positively surely undoubtedly

ADVERB

obviously

Synonyms

STRONGEST

apparently certainly clearly definitely evidently noticeably plainly seemingly surely undoubtedly visibly

WEAK

distinctly incontestably of course openly undeniably unquestionably

Antonyms

STRONGEST

doubtfully dubiously equivocally indefinitely questionably uncertain vaguely

ADVERB

undoubtedly

Synonyms

STRONGEST

assuredly definitely doubtless easily indeed really surely truly undeniably unquestionably

WEAK

beyond question beyond shadow of a doubt of course unmistakably well

Antonyms

STRONGEST

doubtedly doubtfully dubiously questionably uncertain

WEAK

indefinite

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Former Premier League assistant referee Darren Cann said it was "without doubt the correct decision".

From BBC • Jan. 24, 2026

“I think I can speak for all of us, we are lifting you up in prayer right now believing without doubt for your total healing!”

From Los Angeles Times • May 7, 2025

His favourite place he has been on his travels so far is "without doubt" Angel Falls in Venezuela, while his favourite country would be a coin flip between Jordan and Malaysia.

From BBC • Apr. 19, 2025

And, without doubt, it raised public awareness of the issues facing Ethiopia in the 1980s.

From Salon • Dec. 2, 2024

There are, without doubt, many perfectly ordinary-seeming people in your community who have terrible problems, but who manage to seem cheerful and can make you smile.

From "My Life with the Chimpanzees" by Jane Goodall

without doubt

Example Sentences

Related Words