The AI-powered English dictionary
comparative more doubtful, superlative most doubtful
Subject to, or causing doubt. examples
Experiencing or showing doubt, skeptical. examples
Undecided or of uncertain outcome. examples
(obsolete) Fearsome, dreadful.
Improbable or unlikely. examples
Suspicious, or of dubious character. examples
Unclear or unreliable. quotations examples
The pupils of her great eyes were large in the doubtful lamplight, swallowing their green fires in deep pools of mystery and darkness.
1922, E.R. Eddison, The Worm Ouroboros
plural doubtfuls
A doubtful person or thing. quotations examples
They had their lists of Liberals and of the doubtfuls who still remained doubtful. As the election drew near, the force of the whole organization was turned upon these unrepentant doubtfuls.
1976, Kenneth Gibbons, Donald Cameron Rowat, Political Corruption in Canada: Cases, Causes and Cures, page 45