tremendous

Concise Oxford English Dictionary © 2008 Oxford University Press:
tremendous/trəˈmendəs/

▶adjective

• 1 very great in amount, scale, or intensity.

• 2 informal extremely good or impressive; excellent.

• 3 archaic inspiring awe or dread.

– derivatives
tremendously adverb,
tremendousness noun.

– origin C17: from L. tremendus (gerundive of tremere ‘tremble’) + -ous.