- agreeably tolerant; permissive; indulgent: He tended to be lenient toward the children. More lenient laws encouraged greater freedom of expression.
- Archaic. softening, soothing, or alleviative.
- showing or characterized by mercy or tolerance
- archaic caressing or soothing
adj.1650s, “relaxing, soothing,” from Middle French lenient, from Latin lenientem (nominative leniens), present participle of lenire “to soften, alleviate, mitigate, allay, calm,” from lenis “mild, gentle, calm,” probably from PIE root *le- “to leave, yield, let go, slacken” (cf. Lithuanian lenas “quiet, tranquil, tame, slow,” Old Church Slavonic lena “lazy,” Latin lassus “faint, weary,” Old English læt “sluggish, slow,” lætan “to leave behind”). Sense of “mild, merciful” (of persons) first recorded 1787. In earlier use was lenitive, attested from early 15c. of medicines, 1610s of persons.