Webster’s Revised Unabridged Dictionary · 1913 Terrific Ter·rif′ic (tĕr·rĭf′ĭk), a. [L. terrificus; fr. terrere to frighten + facere to make. See Terror, and Fact.] Causing terror; adapted to excite great fear or dread; terrible; as, a terrific form; a terrific sight. ‹ Terrier Terrifical ›