Synonyms of the word

softheaded

• adj. (informal) Lacking sound judgment or resolve; stupid; weak-minded.

crazy

• adj. Insane; lunatic; demented.
• adj. Out of control.
• adj. Overly excited or enthusiastic.
• adj. In love; experiencing romantic feelings.
• adj. (informal) Unexpected; surprising.
• adj. Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.
• adv. (slang) Very, extremely.
• n. An insane or eccentric person; a crackpot.
• n. (slang, uncountable) Eccentric behaviour; lunacy.

half-baked

• adj. Used other than as an idiom: see Partially cooked by heating in an oven.
• adj. (idiomatic, informal, frequently derisive) Incomplete; (of an idea or scheme) not fully planned or carefully…

impractical

• adj. Not practical; impracticable.

screwball

• n. (baseball) A pitch thrown with added pressure by the index finger and a twisting wrist motion resulting…
• n. (US) One who behaves in a crazy manner.
• adj. (originally US) Crazy, offbeat, bizarre, zany, or weird.