Word Study
improbative |
improbatory |
improbity |
improficience |
improficiency |
improfitable
| improgressive
| improlific
| improlificate
| imprompt
| impromptu
improfitable
CIDE DICTIONARY
improfitable, a. [Pref. im- not + profitable: cf. F. improfitable.].
Unprofitable. [1913 Webster]
For further exploring for "improfitable" in Webster Dictionary Online