reptilious,a.rare.|rɛpˈtɪlɪəs| [f. reptile n.1 + -ious.] Resembling a reptile. 1879Meredith Egoist xxi, The advantage taken of it by Willoughby..made her feel abject—reptilious.1936L. C. Douglas White Banners xv. 317 Considering with what reptilious patience she had waited.