UNPROFICIENT
Meaning of UNPROFICIENT in English
adjective
Synonyms: unskillful 1, inadept, inapt, inept, inexpert, unapt, undexterous, unfacile, unhandy
Antonyms: proficient, skilled
Merriam Webster.
Collegiate thesaurus English vocabulary.
Английский энциклопедический словарь тезаурус.
2003