Feeble-minded \Fee"ble-mind"ed\, a. Weak in intellectual power; wanting firmness or constancy; irresolute; vacillating; imbecile. "comfort the feeble-minded." --1 Thess. v. 14. -- {Fee"ble-mind"ed*ness}, n. [1913 Webster]
feeble-mindedness \fee"ble-mind"ed*ness\ n. severe mental deficiency. Syn: amentia. [WordNet 1.5]