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  1. ホーム /
  2. 辞書 /
  3. English Dictionary /
  4. doubtful

doubtful

/ˈdaʊt.fəl/
uncertain or suspicious

She was doubtful about the story he told.

She didn't believe the story because it seemed unreliable.


general

feeling uncertain about something; not sure.

I'm doubtful that the meeting will happen tomorrow.

I don't think the meeting will occur tomorrow.

He gave a doubtful reply to her question.

His answer suggested he didn't fully believe or trust the situation.

Often implies a lack of confidence or trust in the truthfulness or reliability of something.

general

causing or likely to cause doubt; questionable.

The evidence was doubtful and couldn't be trusted.

The proof provided was unreliable and suspicious.

Used to describe something that raises suspicion or is not credible.

Collocations

doubtful abouthaving doubts regarding somethingdoubtful ofsuspicious or distrustful of somethinghighly doubtfulvery unlikely or uncertain

Synonyms

uncertainunsuredubioussuspiciousquestionable

Antonyms

certainsureconfidenttrustworthy

Pro Tip

Common Mistakes

Avoid using 'doubtful' to mean 'feeling sad' or 'disappointed'. It specifically relates to uncertainty or suspicion, not emotions like sadness.

Gold Rule

Connotation

'Doubtful' often carries a negative connotation, implying that something is not trustworthy or is likely to fail.

Word Origin

From Middle English 'doutful', from Old English 'doubt' (uncertainty) + '-ful' (suffix meaning 'full of'). The word evolved from Latin 'dubitare' (to doubt) and entered English via Old French 'douter'.

Usage Notes

Used to express skepticism or lack of conviction. Common in both spoken and written English, particularly in contexts where evidence or reliability is questioned.

Word Breakdown

doubt
uncertainty or lack of conviction
root
+
-ful
full of or characterized by
suffix
English Dictionary
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