Not tense, firm, or rigid; loose; slack; as, a lax bandage; lax fiber.
- Lacking in rigor, strictness, or firmness. See Synonyms at negligent.
- Not taut, firm, or compact; slack. See Synonyms at loose.
- Loose and not easily retained or controlled. Used of bowel movements.
- Linguistics Pronounced with the muscles of the tongue and jaw relatively relaxed, as the vowel (ĕ) in let.