A condition of doubt.

present participle of doubt

without a doubt; surely.

plural of doubting

Alternative spelling of no doubt

uncertain, unclear, unsure

(sometimes attributive) A river in South America, part of the Amazon watershed, now named the Roosevelt River following exploration of it by a party including Theodore Roosevelt.

plural of benefit of the doubt

(law) A degree of uncertainty to which a reason can be assigned; in those jurisdictions influenced by English common law, the minimum degree of uncertainty required to acquit a defendant.

(philosophy) The philosophical idea proposed by Descartes that the world outside the self is subject to uncertainty.