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Definitions

doubtless

[dout-lis] / ˈdaʊt lɪs /
ADVERB
certainly; most likely
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 without doubt
Antonyms
STRONGEST
doubtfully indefinite questionably
WEAK
doubted doubtedly dubious improbably questionable uncertain unlikely

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.

Other complications may arise, but doubtless they could be engineered away.

From The Wall Street Journal • Apr. 20, 2026

Many of his followers doubtless find that his most appealing quality, but the rest of the world is no longer amused.

From Salon • Mar. 19, 2026

Come 2028, there will doubtless be many Democrats seeking to replace President Trump.

From Los Angeles Times • Feb. 25, 2026

But he will doubtless hope to continue a post-season in which refereeing decisions have largely been uncontroversial -- with one major exception.

From Barron's • Feb. 3, 2026

The guards on the walls had doubtless spied her banners some time ago, for the port-cullis was up as they approached.

From "A Clash of Kings" by George R.R. Martin