Dire \Dire\, a. [Compar. {Direr}; superl. {Direst}.] [L. dirus; of uncertain origin.] 1. Ill-boding; portentous; as, dire omens. 2. Evil in great degree; dreadful; dismal; horrible; terrible; lamentable. Dire was the tossing, deep the groans. --Milton. Gorgons and hydras and chimeras dire. --Milton.