A guy or girl who loves to correct petty things. See also: Grammar Nazi
Also a cool insult to use for those who justifiably do not know what this means.
Some guy: Hey man!
Some man: Why's your shoe untied?
Some guy: *looks down* Ha, you got me.
Some man: No, seriously. It's not tied 'cause it's tied the wrong direction!
Some guy: *hard facepalm* Captious idiot...

LATER, CONTINUING TO BE CAPTIOUS:
Some man: Also that other guy who made a definition for this is wrong
by warrobotsalt February 3, 2019
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adj- the most versatile word in existence, it has no singular definition, but rather modifies any noun in the english language. this maddeningly annoying word is often found in memory tests, sometimes prompting test-takers to vomit with rage. can also support suffix addenda.
1. not only is joe a douchebag, but he's a captious motherfucker.

2. to hell with this captious-ass memory test, i'm going to smoke some delectible stogies and swill some hooch.
by Klamson! February 22, 2007
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Tending to find and call attention to faults.
A captious teacher
by NerdGirl0512 May 22, 2021
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