The Oxford Thesaurus An A-Z Dictionary of Synonyms - lax adj.

1) loose, slack, casual, slipshod, easygoing, careless, negligent, permissive, weak, indulgent, flexible, relaxed: Law enforcement has always been lax in that city. 2) imprecise, undefined, indefinite, non-specific, unspecific, vague, shapeless, amorphous, general, broad, inexact, hit-or-miss, careless, untidy, Colloq sloppy: His ideas about tactics are too lax for a military man.