The Collaborative International Dictionary
Tetrical
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
tetrical
a. tetric; harsh; morose