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incisive

American  
[in-sahy-siv] / ɪnˈsaɪ sɪv /

adjective

  1. penetrating; cutting; biting; trenchant.

    an incisive tone of voice.

    Synonyms:
    sardonic, sarcastic, mordant, acid
  2. remarkably clear and direct; sharp; keen; acute.

    an incisive method of summarizing the issue.

  3. adapted for cutting or piercing.

  4. of or relating to the incisors.

    the incisive teeth.


incisive British  
/ ɪnˈsaɪsɪv /

adjective

  1. keen, penetrating, or acute

  2. biting or sarcastic; mordant

    an incisive remark

  3. having a sharp cutting edge

    incisive teeth

"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

Other Word Forms

Etymology

Origin of incisive

From the Medieval Latin word incīsīvus, dating back to 1520–30. See incise, -ive

Explanation

The adjective incisive describes something that is sharp, decisive, and direct. A comment that cuts right to the bone can be just as incisive as an actual knife. The word incisive is rooted in a Latin word that literally means "to cut with a sharp edge." To help you remember the meaning, you can think of the similar word, incisors, which are the teeth that are sharp and cut and tear. The more figurative meaning of describing something that is mentally sharp first appeared in the 1850s. Keen criticism and cutting remarks have been called incisive ever since.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For PSG, there was the composure and speed of Vitinha, the incisive passes and clinical finishing of Dembele and the moments of Kvaratskhelia magic.

From BBC • Apr. 28, 2026

Epic novels like the 800-page “Anna Karenina” have fallen out of favor, replaced by short, incisive literature that mimics our digital lives.

From Los Angeles Times • Apr. 28, 2026

Her writing has always been evocative and incisive, and her economical prose in this book possesses the same kind of rhythms she describes in the music, poetry, film or other art she illustrates.

From Salon • Apr. 14, 2026

In the following months, Webb argued in incisive reports that both firms were likely frauds.

From Barron's • Apr. 7, 2026

Just now and then he posted an incisive little farewell note in the Paris sewerage system, and it was delivered promptly to Dufarge’s boot.

From "Nine Stories" by J. D. Salinger

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