retarded
Slowed the progress
Retarded as an adjective means slowed or delayed: The retarded growth of the seedlings worried the farmer.
In music, retarded (or ritardando) indicates a gradual slowing of tempo.
The word was once standard medical terminology for intellectual disability—mentally retarded appeared in laws and clinical practice for decades.
It became a casual insult meaning stupid and is now considered a slur.
Many find any use of retarded offensive, even the technical senses, because the slur has so thoroughly contaminated the word.
Reduced velocity
- deceleratedDecreased in velocity
- hinderedSlowed or obstructed
- impededObstructed or slowed
- stalledStopped unexpectedly
lagging · braked · throttled · inhibited · checked · curbed · restrained · hampered
Insulting group label
- epithetDescriptive tag for someone
- insultOffensive remark or action
- derogatoryExpressing criticism or disrespect
- pejorativeTerm expressing disapproval
stigmatizing · discriminatory · ableist · outdated · harmful · inappropriate · disrespectful · hurtful
Decrease in speed
- inhibitionMental check on behavior
- suppressionForcible prevention or concealment
- timingArt of choosing moments
- ignitionStarting combustion process
Having cognitive processing difficulties
- clinicalEmotionally detached, medically precise
- diagnosticTest to identify problems
- obsoleteNo longer in use
- supersededReplaced by something newer
slowed
Reduced velocity
- deceleratedDecreased in velocity
- hinderedSlowed or obstructed
- impededObstructed or slowed
stalled · lagging · braked · throttled · inhibited · checked · curbed · restrained · hampered · obstructed
slur
Insulting group label
- epithetDescriptive tag for someone
- insultOffensive remark or action
- derogatoryExpressing criticism or disrespect
pejorative · stigmatizing · discriminatory · ableist · outdated · harmful · inappropriate · disrespectful · hurtful · degrading
deceleration
Decrease in speed
- inhibitionMental check on behavior
- suppressionForcible prevention or concealment
- timingArt of choosing moments
ignition · combustion · chemical · reaction · slow-release
learning-disabled
Having cognitive processing difficulties
- clinicalEmotionally detached, medically precise
- diagnosticTest to identify problems
- obsoleteNo longer in use
- slowed downbraked, decelerated, reduced speed, slackened, throttled
- stuckjammed, clogged, trapped, stuck in mud, snowed in
retardedprecocious
Developed before typical age
advanced · accelerated · early · ahead · gifted
- fire retardantSubstance that inhibits ignition
- flame retardantSubstance inhibiting ignition
- mental retardationImpaired cognitive development
- mentally retardedSeverely limited cognitive function
- fire retardant foamFlame-quenching aerated substance