incisive

[in-sahy-siv]
adjective
1.
penetrating; cutting; biting; trenchant: an incisive tone of voice.
2.
remarkably clear and direct; sharp; keen; acute: an incisive method of summarizing the issue.
3.
adapted for cutting or piercing.
4.
of or pertaining to the incisors: the incisive teeth.

Origin:
1520–30; < Medieval Latin incīsīvus. See incise, -ive

incisively, adverb
incisiveness, noun
unincisive, adjective
unincisively, adverb
unincisiveness, noun


1. acid, mordant; sarcastic, sardonic.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
incisive (ɪnˈsaɪsɪv)
 
adj
1.  keen, penetrating, or acute
2.  biting or sarcastic; mordant: an incisive remark
3.  having a sharp cutting edge: incisive teeth
 
in'cisively
 
adv
 
in'cisiveness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

incisive
1590s, from M.L. incisivus, from L. incisionem (see incision). Originally literal: "cutting with a sharp edge;" figurative sense of "mentally acute" first recorded 1850 as a borrowing from French.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

incisive in·ci·sive (ĭn-sī'sĭv)
adj.

  1. Having the power to cut.

  2. Relating to the incisor teeth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The incisive branch is continued onward within the bone, and supplies the
  canine and incisor teeth.
Below and medial to this foramen is the canine eminence separating the incisive
  from the canine fossa.
It arises from the incisive fossa of the mandible, and descends to be inserted
  into the integument of the chin.
He voiced his disagreements with me in incisive fashion.
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