This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. To cause to move or proceed slowly; delay or impede.

verb-intransitive. To be delayed.

n. A slowing down or hindering of progress; a delay.

n. Music A slackening of tempo.

n. Offensive Slang Used as a disparaging term for a mentally retarded person.

n. Offensive Slang A person considered to be foolish or socially inept.

n. Retardation; delay.

n. A person with mental retardation.

n. A stupid person, or one who is slow to learn.

v. To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder

v. To put off; to postpone.

v. To be slow or dilatory to perform (something).

v. To decelerate; to slow down.

v. To stay back.

v. To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder; ; -- opposed to accelerate.

v. To put off; to postpone

verb-intransitive. To stay back.

n. Retardation; delay.

n. A mentally retarded person.

n. a person who is stupid or inept, especially in social situations.

To make slow or slower; obstruct in motion or progress; delay; impede; clog; hinder.

To defer; postpone; put off.

Synonyms To detain, delay.

To be delayed or later than usual.

n. Retardation.

v. lose velocity; move more slowly

n. a person of subnormal intelligence

v. cause to move more slowly or operate at a slower rate

v. be delayed

v. slow the growth or development of

"The same can be true of anyone who slips and uses the term retard or retarded."

age of the tide   

retardating    retarded    retarding    retards   

be   

hinder    retarding force    retarded motion    in retard    retard of the tide    retarding ague   

retarded   

detain    defer    procrastinate    postpone    impede    hinder    delay    obstruct    retardation    hold-up   

Bernard    Brossard    Chard    Gerard    Gillard    Girard    Godard    Picard    Yard    ard   

unable    perturb    handicap    depress    deranged    disappoint    Embarrass    indisposed    misguided    flawed