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  1. full of or characterized by vigor: a vigorous effort.
  2. strong; active; robust: a vigorous youngster.
  3. energetic; forceful: vigorous steps; a vigorous personality.
  4. powerful in action or effect: vigorous law enforcement.
  5. growing well, as a plant.

Origin of vigorous

1300–50; Middle English < Old French < Medieval Latin vigorōsus. See vigor, -ous
Related formsvig·or·ous·ly, adverbvig·or·ous·ness, nouno·ver·vig·or·ous, adjectiveo·ver·vig·or·ous·ly, adverbo·ver·vig·or·ous·ness, nounsu·per·vig·or·ous, adjectivesu·per·vig·or·ous·ly, adverbsu·per·vig·or·ous·ness, nounun·vig·or·ous, adjectiveun·vig·or·ous·ly, adverbun·vig·or·ous·ness, noun

Synonyms for vigorous

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Synonym study

2. See active.

Antonyms for vigorous

1–5. weak. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vigorously

Contemporary Examples of vigorously

Historical Examples of vigorously

British Dictionary definitions for vigorously


  1. endowed with bodily or mental strength or vitality; robust
  2. displaying, involving, characterized by, or performed with vigourvigorous growth
Derived Formsvigorously, adverbvigorousness, 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

Word Origin and History for vigorously



c.1300 (early 13c. as a surname), from Anglo-French vigrus, Old French vigorosus, from Latin vigere "be lively, flourish, thrive" (see vigor). Related: Vigorously.

Online Etymology Dictionary, © 2010 Douglas Harper