nonproficiency

[ non-pruh-fish-uh n-see ]
/ ˌnɒn prəˈfɪʃ ən si /

noun

absence or lack of proficiency.

Origin of nonproficiency

First recorded in 1585–95; non- + proficiency

OTHER WORDS FROM nonproficiency

non·pro·fi·cient, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019