(transitive) To keep delaying; to continue to hinder; to prevent from progressing. / (transitive) To put off; to postpone. / (transitive, obsolete) To be slow or dilatory to perform (something).

Retardation; the act of retarding or delaying.

Of or pertaining to retardations.

Capable of being retarded, or delayed.

plural of retardment

The degree of being retardant

plural of retardancy

(slang, derogatory) Stupid.

Alternative form of retardancy

So as to retard or hinder.