Lax (lăks), a. [Compar.Laxer (–ẽr); superl.Laxest.] [L. laxus Cf. Laches, Languish, Lease, v. t., Leash.] 1. Not tense, firm, or rigid; loose; slack; as, a lax bandage; lax fiber.
The flesh of that sort of fish being lax and spongy. Ray.
2. Not strict or stringent; not exact; loose; weak; vague; equivocal.
The discipline was lax. Macaulay.
Society at that epoch was lenient, if not lax, in matters of the passions. J. A. Symonds.
The word “æternus” itself is sometimes of a lax signification. Jortin.
3. Having a looseness of the bowels; diarrheal.
Syn. — Loose; slack; vague; unconfined; unrestrained; dissolute; licentious.