lav·ish / ˈlavish/ • adj. sumptuously rich, elaborate, or luxurious: a lavish banquet. ∎ (of a person) very generous or extravagant: he was lavish with his hospitality. ∎ spent or given in profusion: lavish praise.• v. [tr.] (lavish something on) bestow something in generous or extravagant quantities upon: the media couldn't lavish enough praise on the film. ∎ (lavish something with) cover something thickly or liberally with: she lavished our son with kisses.DERIVATIVES: lav·ish·ly adv. lav·ish·ness n.