terrific

Concise Oxford English Dictionary © 2008 Oxford University Press:
terrific/təˈrɪfɪk/

▶adjective

• 1 of great size, amount, or intensity.

  ■ informal excellent.

• 2 archaic causing terror.

– derivatives
terrifically adverb.

– origin C17: from L. terrificus, from terrere ‘frighten’.