Inferior
Part of speech: adjective
Definition: of lower quality of lower rank located below In botany, inside the flower stalk below the petals. Said of an ovary.
Part of speech: noun
Definition: a person of lower stature to another
Example sentence: I never doubted my ability, but when you hear all your life you're inferior, it makes you wonder if the other guys have something you've never seen before. If they do, I'm still looking for it.
Deficient
Part of speech: adjective
Definition: Lacking something essential; often construed with in.Insufficient or inadequate in amount.