ἀκανθ-ώδης · akanth-ōdēs — LSJ
full of thorns, thorny, χῶρος Hdt. 1.126; τὸ ῥόδον Arist. Pr. 907a22, cf. Thphr. HP 1.5.3, etc.
prickly, γλῶττα Arist. HA 503a2; τρίχες ib. 490b28; of the vertebrae, spinous, ib. 516b20: Comp., ib. 516b22.
metaph., λόγοι ἀ. thorny arguments, Luc. DMort. 20[10].8; ἀ. βίος Suid.