LAX Meaning of LAX in English a. 1.Loose, slack, re~ed.2.Soft, flabby, drooping, re~ed.3.Remiss, negligent, neglectful.4.Latitudinarian ( which see ).5.Licentious, dissolute, loose. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012