retardation

1. A decrease in rate of change (synset 105068514)
   "the deceleration of the arms race"
   is a type of: alteration, change, modification - an event that occurs when something passes from one state or phase to another
   same as: deceleration, slowing
2. The extent to which something is delayed or held back (synset 115300584)
   is a type of: delay, hold, postponement, time lag, wait - time during which some action is awaited
3. Any agent that retards or delays or hinders (synset 109431128)
   "flame-retardant"
   is a type of: agent - an active and efficient cause; capable of producing a certain effect
   same as: retardant, retardent
4. Lack of normal development of intellectual capacities (synset 105654063)
   is a type of: stupidity - a poor ability to understand or to profit from experience
   subtypes:

   • abnormality, mental defectiveness - retardation sufficient to fall outside the normal range of intelligence
   • mental deficiency, moronity - mild mental retardation
   • amentia, idiocy - extreme mental retardation
   • imbecility - retardation more severe than a moron but not as severe as an idiot
   same as: backwardness, mental retardation, slowness, subnormality
5. The act of slowing down or falling behind (synset 101069501)
   is a type of: delay, holdup - the act of delaying; inactivity resulting in something being put off until a later time
   same as: lag, slowdown

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