Reverse Dictionary: LAX

ADJECTIVES
LACHES lax, careless, remiss → c1461 obs.
LARGE 1. of speech, etc.: free, unrestrained; in bad sense, lax, licentious, improper, gross → c1374 obs.
2. indulgent, lax; not strict or rigorous → c1440 obs.
LUSH lax, flaccid; soft, tender → c1440 obs. exc. Eng. dial.

ADVERBS
LATITUDINARIALLY with latitude or laxity of distinction → 1853
REMISSIVELY leniently, laxly → 1537 obs.

NOUNS
LACHEDNESS laxness or slackness; remissness → 1484 obs.
LASCHETY laxity, carelessness → 1673 obs.