1. Cause to move more slowly or operate at a slower rate
   "This drug will retard your heart rate" 
2. Be delayed 
3. Slow the growth or development of
   "The brain damage will retard the child's language development"
   - check, delay 
4. Lose velocity; move more slowly
   - decelerate, slow, slow down, slow up

1. A person of subnormal intelligence
   - idiot, imbecile, cretin, moron, changeling, half-wit, thicko

Derived forms: retarded, retards, retarding

See also: retardation

Type of: alter, be, change, decelerate, decrease, diminish, fall, lessen, modify, simple, simpleton, slow down

Encyclopedia: Retard

• clear-air turbulence
• clear-cut
• clear-eyed
• clear-headedness
• clear-sighted
• clear-thinking
• clearance
• clearance sale
• clearcole
• clearcutness
• cleared
• clearheaded
• clearing
• clearing bank
• clearing house
• clearly
• clearness
• clearstory
• clearway
• clearweed
• cleat
• cleats
• cleavable
• cleavage
• cleavage cavity