Definition of lax adjective from the Oxford Advanced Learner's Dictionary

     

    lax

     adjective
    adjective
    BrE BrE//læks//
     
    ; NAmE NAmE//læks//
     
     
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  1. 1(disapproving) not strict, severe or careful enough about work, rules or standards of behaviour synonym slack, careless lax security/discipline a lax attitude to health and safety regulations
  2. 2 (phonetics) (of a speech sound) produced with the muscles of the speech organs relaxed opposite tense
  3. Word Origin late Middle English (in the sense ‘loose’, relating to the bowels): from Latin laxus.
See the Oxford Advanced American Dictionary entry: lax