lax (Adjective) — Lacking in rigour or strictness. ex. "such lax and slipshod ways are no longer acceptable" ex. "lax in attending classes"
lax (Adjective) — (phonetics) pronounced with muscles of the tongue and jaw relatively relaxed (e.g., the vowel sound in 'bet').
lax (Adjective) — Lacking in strength, firmness or resilience. ex. "a lax rope"
lax (Adjective) — Emptying easily or excessively. ex. "lax bowels"