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aggressive

[ uh-gres-iv ]
/ əˈgrɛs ɪv /
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See synonyms for: aggressive / aggressiveness on Thesaurus.com

adjective

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Origin of aggressive

First recorded in 1690–1700; from Late Latin aggressīvus, derivative of Latin aggressus, past participle of aggredī “to go to, approach, attack”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for aggressive

aggressive
/ (əˈɡrɛsɪv) /

adjective

quarrelsome or belligerentan aggressive remark
assertive; vigorousan aggressive business executive
aggressively, adverbaggressiveness, 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

Medical definitions for aggressive

aggressive
[ ə-grĕsĭv ]

adj.

Characterized by aggression.
Inclined to behave in a hostile fashion.
Tending to spread quickly, as a tumor; fast-growing.
Characterized by or inclined toward vigorous or intensive medical treatment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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