doubtful

English edit

doubtful (comparative more doubtful, superlative most doubtful)

Subject to, or causing doubt.
Experiencing or showing doubt, skeptical.
Undecided or of uncertain outcome.
(obsolete) Fearsome, dreadful.
Improbable or unlikely.
Suspicious, or of dubious character.
Unclear or unreliable.
- 1922, E.R. Eddison, The Worm Ouroboros:
  The pupils of her great eyes were large in the doubtful lamplight, swallowing their green fires in deep pools of mystery and darkness.

subject to, or causing doubt

experiencing or showing doubt

Armenian: կասկածամիտ (hy) (kaskacamit), թերահավատ (hy) (tʻerahavat) (sceptical), երկբայելի (erkbayeli), կասկածելի (hy) (kaskaceli)
Azerbaijani: şübhələnən, şəkli
Bulgarian: съмняващ се (sǎmnjavašt se)
Catalan: dubtós (ca)
Danish: tvivlende, usikker
Finnish: epävarma (fi), epäilevä (fi)
German: zweifelnd (de)
Irish: amhrasach
Italian: discutibile (it)
Latin: dubitabundus
Norwegian:
Bokmål: tvilende (no)

Nynorsk: tvilande
Portuguese: incerto (pt)
Russian: сомнева́ющийся (ru) (somnevájuščijsja)
Scottish Gaelic: mì-chinnteach
Telugu: సంశయాత్మకమైన (saṁśayātmakamaina)

undecided or of uncertain outcome

improbable or unlikely

suspicious, or of dubious character

doubtful (plural doubtfuls)

A doubtful person or thing.
- 1976, Kenneth Gibbons, Donald Cameron Rowat, Political Corruption in Canada: Cases, Causes and Cures, page 45:
  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.