Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Latin
Origin: laxus 'loose'

lax

 adjective
     
lax
not strict or careful enough about standards of behaviour, work, safety etc [= slack]
lax in (doing) something
The company has been lax in carrying out its duties.
—laxity also laxness noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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