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sound

adjective (GOOD JUDGMENT)
 
 
/saʊnd/

Definition

showing good judgment; able to be trusted: She gave me some very sound advice. Are these pesticides environmentally sound (= will they not damage the environment)? Government bonds are a sound investment.Wise and sensible
(Definition of sound adjective (GOOD JUDGMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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