feebleminded
         adj 1: retarded in intellectual development [syn: {backward},
                  {half-witted}, {slow-witted}, {feebleminded}]

English Dictionary: feebleness	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
feeblemindedness n severe mental deficiency
From WordNet (r) 3.0 (2006) [wn]:
feebleness n the state of being weak in health or body (especially from old age) Synonym(s): infirmity, frailty, debility, feebleness, frailness, valetudinarianism the quality of lacking intensity or substance; "a shrill yet sweet tenuity of voice"- Nathaniel Hawthorne Synonym(s): feebleness, tenuity
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Fable \Fa"ble\, v. i. [imp. & p. p. {Fabled}; p. pr. & vb. n.       {Fabling}.]       To compose fables; hence, to write or speak fiction; to write       or utter what is not true. [bd]He Fables not.[b8] --Shak.                   Vain now the tales which fabling poets tell. --Prior.                   He fables, yet speaks truth.                  --M. Arnold.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Feeble-minded \Fee"ble-mind"ed\, a.       Weak in intellectual power; wanting firmness or constancy;       irresolute; vacilating; imbecile. [bd]comfort the       feeble-minded.[b8] --1 Thess. v. 14. --       {Fee"ble-mind"ed*ness}, n.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Feeble-minded \Fee"ble-mind"ed\, a.       Weak in intellectual power; wanting firmness or constancy;       irresolute; vacilating; imbecile. [bd]comfort the       feeble-minded.[b8] --1 Thess. v. 14. --       {Fee"ble-mind"ed*ness}, n.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Feebleness \Fee"ble*ness\, n.       The quality or condition of being feeble; debility;       infirmity.                   That shakes for age and feebleness.         --Shak.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Fiveling \Five"ling\, n. (Min.)       A compound or twin crystal consisting of five individuals.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Fopling \Fop"ling\, n.       A petty fop. --Landor.