/ təˈrɪfɪk; NAmE / adjective
1.
( informal ) excellent; wonderful :
I feel absolutely terrific today!
She's doing a terrific job.
( ironic ) ➡ note at great
2.
( informal ) very large; very great :
I've got a terrific amount of work to do.
We drove along at a terrific speed.
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WORD ORIGIN
mid 17th cent. (originally referring to something that causes terror): from Latin terrificus , from terrere frighten.