Adjective

(en adjective)

Delayed; delayed in development, hindered; impeded.

* 2004 , Duncan Mackay, The Observer , 8 Aug 2004:

HGH, which was originally developed to assist children with retarded growth, is believed to be especially popular with sprinters.

(chiefly, North America) Underdeveloped (of a person's intelligence, abilities etc.).

* 2000 , Kate Connolly, The Guardian , 19 Apr 2000:

The European Roma Rights Centre in Budapest, which is representing the children - from the north-eastern city of Ostrava - said that the education ministry and local authorities had for decades "perpetuated a system which routinely brands disproportionate numbers of Gypsies as mentally retarded ".

(colloquial, derogatory) Stupid, dumb.

* 1988 , Raymond E Feist, Faerie Tale :

Looking at Jack, Gabbie said, "What?" "That's the Troll Bridge." She groaned at the pun. "That's retarded ."

(physics) Designating a parameter of an electromagnetic field which is adjusted to account for the finite speed of radiation.

Adjective

(er)

Untrue, not factual, factually incorrect.

*{{quote-book, year=1551, year_published=1888

, title= A New English Dictionary on Historical Principles: Founded Mainly on the Materials Collected by the Philological Society , section=Part 1, publisher=Clarendon Press, location=Oxford, editor= , volume=1, page=217 , passage=Also the rule of false position, with dyuers examples not onely vulgar, but some appertaynyng to the rule of Algeber.}}

Based on factually incorrect premises: false legislation

Spurious, artificial.

:

*

*:At her invitation he outlined for her the succeeding chapters with terse military accuracy?; and what she liked best and best understood was avoidance of that false modesty which condescends, turning technicality into pabulum.

(lb) Of a state in Boolean logic that indicates a negative result.

Uttering falsehood; dishonest or deceitful.

:

Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.

:

*(John Milton) (1608-1674)

*:I to myself was false , ere thou to me.

Not well founded; not firm or trustworthy; erroneous.

:

*(Edmund Spenser) (c.1552–1599)

*:whose false foundation waves have swept away

Not essential or permanent, as parts of a structure which are temporary or supplemental.

(lb) Out of tune.