Wordnet 3.0
NOUN (1)
1.
severe mental deficiency;
The Collaborative International Dictionary of English v.0.48:
feeble-mindedness \fee"ble-mind"ed*ness\ n.
severe mental deficiency.
Syn: amentia.
[WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:
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]
WordNet (r) 3.0 (2006):
feeblemindedness
n 1: severe mental deficiency