The Collaborative International Dictionary
Tetric
Tetric \Tet"ric\, Tetrical \Tet"ri*cal\, a. [L. tetricus, taetricus, from teter, taeter, offensive, foul.] Forward; perverse; harsh; sour; rugged. [Obs.] -- Tet"ric*al*ness, n.
Wiktionary
tetric
Etymology 1 a. (context obsolete English) morose, bitter. Etymology 2
a. (context chemistry English) Denoting a kind of acid.