doubtful

[dout-fuhl]
adjective
1.
of uncertain outcome or result.
2.
admitting of or causing doubt; uncertain; ambiguous.
3.
unsettled in opinion or belief; undecided; hesitating.
4.
of equivocal or questionable character: His tactics are highly doubtful.

Origin:
1350–1400; Middle English douteful. See doubt, -ful

doubtfully, adverb
doubtfulness, noun
predoubtful, adjective
predoubtfully, adverb
quasi-doubtful, adjective
quasi-doubtfully, adverb
undoubtful, adjective
undoubtfully, adverb
undoubtfulness, noun


1. undetermined, unsettled, indecisive, dubious, problematic. 2. unsure, indeterminate. 3. irresolute, vacillating, hesitant. Doubtful, dubious, incredulous, skeptical imply reluctance or unwillingness to be convinced. To be doubtful about something is to feel that it is open to question or that more evidence is needed to prove it: to be doubtful about the statements of witnesses. Dubious implies vacillation, unsureness, or suspicion: dubious about suggested methods of manufacture. Incredulous means unwilling or reluctant to believe: incredulous at the good news. Skeptical implies a general disposition to doubt or question: skeptical of human progress. 4. shady.


1, 2. certain.


See doubt.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To doubtful
Collins
World English Dictionary
doubtful (ˈdaʊtfʊl)
 
adj
1.  unlikely; improbable
2.  characterized by or causing doubt; uncertain: a doubtful answer
3.  unsettled; unresolved
4.  of questionable reputation or morality
5.  having reservations or misgivings
6.  (of a sportsperson) not likely to be fit enough to play or take part
 
n
7.  a person who is undecided or uncertain about an issue
8.  a sportsperson who is not likely to be fit enough to play or take part
 
usage  It was formerly considered correct to use whether after doubtful (it is doubtful whether he will come), but now if and that are also acceptable
 
'doubtfully
 
adv
 
'doubtfulness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

doubtful
late 14c., from doubt + -ful. Related: Doubtfully.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Whether the settlement will raise much money is doubtful.
But even there it is doubtful that your green plans are that unusual.
It is doubtful he would have achieved acclaim without it.
It is doubtful that the princes appreciated the courtesy.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature