retarded.
Delayed; delayed in development, hindered; impeded.
Meaning & usage
Delayed; delayed in development, hindered; impeded.
This kind of plant is usually of a retarded growth.
Having mental retardation; mentally deficient or underdeveloped.
Specifically, having an IQ below 70.
Extremely stupid; obtuse
Designating a parameter of an electromagnetic field which is adjusted to account for the finite speed of radiation.
Where this word comes from
Etymology tree Proto-Italic *wre- Latin re- Proto-Indo-European *tr̥h₂-d-o- Proto-Italic *tardo- Latin tardus Latin retardōbor. Anglo-Norman retarderbor. Middle English retarden English retard English -ed English retarded From retard + -ed.
simple past and past participle of retard
Where this word comes from
Etymology tree Proto-Italic *wre- Latin re- Proto-Indo-European *tr̥h₂-d-o- Proto-Italic *tardo- Latin tardus Latin retardōbor. Anglo-Norman retarderbor. Middle English retarden English retard English -ed English retarded From retard + -ed.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.