Open English Wordnet
Nouns
(n)sag, droopa shape that sags“there was a sag in the chair seat” Verbs
(v)sag, droop, swag, flagdroop, sink, or settle from or as if from pressure or loss of tautness (v)droop, lollhang loosely or laxly“His tongue lolled” (v)wilt, droopbecome limp“The flowers wilted”