subnormal Synonyms

of poor quality below par below average unsatisfactory moronic low-grade worthless unnatural subalternate stupid substandard imbecilic of low quality below normal mentally defective not up to par leaving much to be desired not good enough subpar sub-par unintelligent simple second-rate second-class idiot feeble-minded deficient defective bottom bantam backward amorphous adjunctive idiotic imbecile retarded poor mediocre low lesser less inferior inadequate imperfect abnormal