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vigorous

adjective
 
 
/ˈvɪɡ.ər.əs/ US  /-ɚ-/

Definition

very forceful or energetic: a vigorous debate There has been vigorous opposition to the proposals for a new road. He takes plenty of vigorous exercise.Energetic and lively healthy and strong: Cutting the bush back in the autumn will help promote vigorous growth in the spring.Fit and healthy vigorously
 
 
/-li/ adverb
Energetic and lively
(Definition of vigorous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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