Tremendous

Part of speech: adjective (a.)

Fitted to excite fear or terror; such as may astonish or terrify by its magnitude, force, or violence; terrible; dreadful; as, a tremendous wind; a tremendous shower; a tremendous shock or fall. A tremendous mischief was a foot. Motley.

Synonyms: Terrible; dreadful; frightful; terrific; horrible; awful. Tre*men"dous*ly, adv. Tre*men"dous*ness, n.