MORONIC is an adjective used to describe someone or something that is FOOLISH, unintelligent, and lacking in common sense. OAFISH (6 letters) is another word for clumsy, awkward, and uncoordinated. NONSENSICAL (11 letters) means something that is illogical, absurd, and irrational. FATUOUS (7 letters) is a term used to describe someone who is silly, FOOLISH, and lacking in intelligence. FOOLISH (7 letters) is another word for silly, STUPID, and unwise. BACKWARD (8 letters) is a term used to describe someone who is slow, DULL, and behind in development. DULL (4 letters) is a word used to describe someone or something that is not interesting, exciting, or stimulating. IMBECILE (8 letters) is a term used to describe someone who is mentally slow, FOOLISH, and lacking in intelligence. DUMB (4 letters) is another word for STUPID, ignorant, and mute. ASININE (7 letters) is a term used to describe someone or something that is FOOLISH, silly, and ridiculous. STUPID (6 letters) is another word for FOOLISH, unintelligent, and senseless. INANE (5 letters) is a term used to describe someone or something that is silly, FOOLISH, and lacking in intelligence. IDIOTIC (7 letters) is another word for FOOLISH, STUPID, and senseless. All of these words are synonyms for MORONIC, which is used to describe someone or something that is FOOLISH, unintelligent, and lacking in common sense.