Bedeutung von “deficient” — Learner’s Dictionary

deficient

adjective us uk /dɪˈfɪʃənt/
NOT HAVING ENOUGH

not having enough of something:

If you have poor night vision you may be deficient in vitamin A.
NOT GOOD ENOUGH

not good enough:

His theory is deficient in several respects.

(Definition von “deficient” aus dem Cambridge Learner's Dictionary © Cambridge University Press)