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adj. lax·er, lax·est
1. Lacking in rigor, strictness, or firmness. See Synonyms at negligent.
2. Not taut, firm, or compact; slack. See Synonyms at loose.
3. Loose and not easily retained or controlled. Used of bowel movements.
4. Linguistics Pronounced with the muscles of the tongue and jaw relatively relaxed, as the vowel (ĕ) in let.