unimpress means too fail to impress positively; to leave very little impression or a bad impression;. Lexicurio rates it Rare gem — a strength score of 81 out of 100.
verb
- Too fail to impress positively; to leave very little impression or a bad impression;“'Twas on a morning, ere the Spring Had quickened ev'ry mortal thing, Within a place where students bring Their stomachs pranky, heads not full, Fresh as the sod, and raw from school ; To gather aids from dusty books Which unimpress their varied looks.”