doubtful

Meaning

Adj

1. Subject to, or causing doubt.
2. Experiencing or showing doubt, skeptical.
3. Undecided or of uncertain outcome.
4. (obsolete) Fearsome, dreadful.
5. Improbable or unlikely.
6. Suspicious, or of dubious character.
7. Unclear or unreliable.

Noun

A doubtful person or thing.

Synonyms

dubious

uncertain

suspicious

questionable

suspect

unsure

undecided

hesitant

ambiguous

indecisive

iffy

irresolute

problematic

equivocal

unreliable

precarious

wavering

disputable

skeptical

shady

faltering

vacillating

insecure

debatable

shaky

problematical

hesitating

distrustful

hardly

obscure

fishy

unlikely

unclear

dubitable

in question

doubting

sceptical

doubted

tentative

who knows

incredible

doubt

chancy

fluky

flukey

perplexed

floating

disputed

believe

noticeable

Translations

douteux

zweifelhaft

dudoso

dubbioso

incertain

duvidoso

fraglich

suspect

dubtós

twijfelachtig

verdächtig

αμφίβολος

ungewiss

dubbio

incerto

Pronounced as (IPA)

/ˈdaʊtfəl/

Etymology

Inherited from Middle English: doutfull

In summary

From Middle English doutfull, douteful, equivalent to doubt + -ful.