retarded

• POS: Adjective
• HYPHEN: re=tard=ed

CIDE DICTIONARY

retarded, n. 

 having a limited or below normal mental ability; same as mentally retarded; -- used especially in relation to performance in academic tasks.  [PJC]

OXFORD DICTIONARY

retarded, adj. backward in mental or physical development.

THESAURUS

retarded

arrested, babbling, back, backward, behind, behindhand, belated, blithering, blocked, bridled, burbling, checked, constrained, controlled, crackbrained, cracked, crazy, cretinistic, cretinous, curbed, delayed, delayed-action, detained, dithering, driveling, drooling, guarded, half-baked, half-witted, held up, hung up, idiotic, imbecile, imbecilic, impeded, in a bind, in abeyance, in check, in leading strings, in remission, inhibited, jammed, late, latish, maundering, mentally defective, mentally deficient, mentally handicapped, mentally retarded, mongoloid, moratory, moronic, never on time, not all there, obstructed, on leash, overdue, pent-up, restrained, set back, simple, simpleminded, simpletonian, slobbering, slow, slowed down, stopped, subnormal, tardy, under control, under discipline, under restraint, unpunctual, unready, untimely