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[suh-spish-uh s] /səˈspɪʃ əs/
tending to cause or excite suspicion; questionable:
suspicious behavior.
inclined to suspect, especially inclined to suspect evil; distrustful:
a suspicious tyrant.
full of or feeling suspicion.
expressing or indicating suspicion:
a suspicious glance.
Origin of suspicious
1300-50; Middle English < Latin suspīciōsus, equivalent to suspīci- (see suspicion) + -ōsus -ous
Related forms
suspiciously, adverb
suspiciousness, noun
hypersuspicious, adjective
hypersuspiciously, adverb
hypersuspiciousness, noun
oversuspicious, adjective
oversuspiciously, adverb
oversuspiciousness, noun
presuspicious, adjective
presuspiciously, adverb
presuspiciousness, noun
self-suspicious, adjective
supersuspicious, adjective
supersuspiciously, adverb
supersuspiciousness, noun
unsuspicious, adjective
unsuspiciously, adverb
unsuspiciousness, noun
1. suspect, dubious, doubtful. 2. mistrustful, wary, disbelieving. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for suspiciousness
Historical Examples
  • Its character for suspiciousness may be gathered from what different writers have said about it.

    The Foot-path Way Bradford Torrey
  • Bobby, however, was in a field where suspiciousness could scarcely be overdone.

    The Making of Bobby Burnit George Randolph Chester
  • I have ever held it to be a proof of the suspiciousness of our natures and unworthy.

    Valerie Frederick Marryat
  • There was a suspiciousness about his tone that was almost insulting.

    Three Men on the Bummel Jerome K. Jerome
  • His defect in his new office was an excess of zeal in suspiciousness.

    Sir Walter Ralegh William Stebbing
  • Even their suspiciousness was but the growling of a beaten dog.

    The Job Sinclair Lewis
  • The intensity of my character, and the suspiciousness which it induced, helped me in this determination.

    Confession W. Gilmore Simms
  • suspiciousness is natural to tyranny: spies are the agents of despots.

    Trevethlan: Volume 1 William Davy Watson
  • He talked freely, and all evidence of suspiciousness or evasiveness was absent.

  • His inclination to moodiness and suspiciousness is much less.

British Dictionary definitions for suspiciousness


exciting or liable to excite suspicion; questionable
disposed to suspect something wrong
indicative or expressive of suspicion
Derived Forms
suspiciously, adverb
suspiciousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for suspiciousness



"deserving of or exciting suspicion," mid-14c., from Old French suspecious, from Latin suspiciosus "exciting suspicion" (see suspicion). Meaning "full of or inclined to feel suspicion" is attested from c.1400. Edgar Allan Poe (c.1845) proposed suspectful to take one of the two conflicting senses. Related: suspiciously; suspiciousness.

Online Etymology Dictionary, © 2010 Douglas Harper
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