retardation

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. a decrease in rate of change (Freq. 1)
- the deceleration of the arms race
• Syn:
deceleration, slowing
• Ant:
acceleration (for: deceleration)
• Derivationally related forms:
retard, slow (for: slowing), decelerate (for: deceleration)
• Hypernyms:
change, alteration, modification
2. the extent to which something is delayed or held back
• Derivationally related forms:
retard
• Hypernyms:
delay, hold, time lag, postponement, wait
3. the act of slowing down or falling behind
• Syn:
slowdown, lag
• Derivationally related forms:
retard, lag (for: lag), slow down (for: slowdown)
• Hypernyms:
delay, holdup
4. any agent that retards or delays or hinders
- flame-retardant
• Syn:
retardant, retardent
• Derivationally related forms:
retard
• Hypernyms:
agent
5. lack of normal development of intellectual capacities
• Syn:
mental retardation, backwardness, slowness, subnormality
• Derivationally related forms:
subnormal (for: subnormality), slow (for: slowness), backward (for: backwardness), retard
• Hypernyms:
stupidity
• Hyponyms:
abnormality, mental defectiveness, moronity, mental deficiency, idiocy,
amentia, imbecility

• Từ đồng nghĩa / Synonyms:
  slowdown, lag, mental retardation, backwardness, slowness, subnormality, retardant, retardent, deceleration, slowing