不成人
bù​chéng​rén

good-for-nothing

bù​chéng​rén good-for-nothing
  1. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  2. 成人 chéng​rén
    to become successful
    to become a useful person or a success in life; to reach one's potential

bù​chéng​rén incomplete person
  1. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  2. 成人 chéng​rén
    perfect person
    (literary) a person of both high virtue and great wisdom; an accomplished or perfect person