doubtless

[dout-lis]

adverb

1. without doubt; certainly; surely; unquestionably.

2. probably or presumably.

adjective

1. free from doubt or uncertainty; certain, sure.

doubtless

/ ˈdaʊtlɪs /

adverb

1. certainly

2. probably

adjective

1. certain; assured

Other Word Forms

• doubtlessness noun

Word History and Origins

Origin of doubtless¹

First recorded in 1300–50, doubtless is from the Middle English word douteles. See doubt, -less

Synonym Study

Doubtless, undoubtedly, indubitably, unquestionably are adverbs that express certainty. Doubtless, although it sometimes denotes an absolute degree of certainty, more often means “probably,” “presumably,” or “no doubt”: She will doubtless accept the offer. Undoubtedly means “beyond doubt”: undoubtedly the most prolific and popular composer of his time. Indubitably and unquestionably both affirm an unassailable conviction; they differ only in tone, indubitably being appropriate to more formal or learned discourse and unquestionably appropriate in a wider range of contexts and styles: an indubitably (or unquestionably) accurate transliteration of the hieroglyphic text; unquestionably the hottest running back in the league.

Example Sentences

Scottish ministers' generosity will doubtless be popular - in particular with those receiving the payments - but we should not pretend that it was an easy choice to make.

From BBC

It has happened before and it will doubtless happen again.

From BBC

There are doubtless many more in California who support the party, or at least its policies and broad philosophy, but choose not to formally affiliate with the GOP.

From Los Angeles Times

Unsurprisingly, his approval ratings — which he doubtless sees as tied to his masculine power — dropped quickly.

From Salon

Advancing years, the dislike of being constantly under harsh scrutiny, wanting to be close to his young family and behind the scene shenanigans that abound in Indian cricket have doubtless played a part too.

From BBC

Related Words

• absolutely 
• clearly 
• presumably 
• surely 
• undoubtedly 
• unequivocally 
• unquestionably