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slack

adjective (NOT TIGHT)
 
 
/slæk/

Definition

not tight; loose: These tent ropes are too slack - they need tightening.Flexible, loose and yielding slackly
 
 
/ˈslæk.li/ adverb
(Definition of slack adjective (NOT TIGHT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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