Lewis & Short

flaccĭdus, a, um, adj. [flaccus], flabby, flaccid, pendulous (cf. marcidus).

  1. I. Lit.: aures, Col. 7, 6, 2; Plin. 8, 51, 77, § 205: folium, id. 15, 30, 39, § 127: vela (with pendula), App. Flor. p. 365.
  2. II. Trop., languid, feeble: flaccidiore turbine fertur, Lucr. 5, 632: argumentatio, Arn. 7, 251.