intelligent, brilliant, brainy, skillful, smart, talented
Smart, sly
They are antonyms.
accomplished, artful, clever, capable, brilliant
They are antonyms, as they are opposites.
Bright. briliant, clever, crafty, inventive.
Here are a few synonyms for clever: Smart Intelligent Witty Bright Knowledgeable Brainy
Clever and wise are not exact synonyms, but they would only rarely be antonyms. They both have the underlying meaning of mental acuity, or smartness, although each has an inference of the type or source for this faculty.
Intelligent....Some synonyms for smart are:intelligent, astute, sharp, shrewd, clever;or fashionable, chic, voguish;or forward, fresh, impertinent, impudent;or sting.
sharp, intelligent, smart, clever, designing, artful, canny, wily
acute, keen, pointed, clever, bright
talented, able, skilled, expert, masterly, brilliant, capable, clever
Funny can have the synonyms humorous, amusing, comical, clever, farcical, jocular, laughable, or mirthful. (More extreme would be hysterical, riotous, or absurd.)