retarded

• 智力发育迟缓的，落后的，迟钝的。口语中用作粗鲁的侮辱，指人愚蠢。

An adjective formerly used in medical and general contexts to describe a delay or slowness in development or progress. Now considered highly offensive and obsolete in modern usage.

1. Delayed or held back in development, progress, or occurrenceC1formalscientific

   Characterized by a slower rate of advancement, growth, or reaction than is usual or expected. This can apply to physical, intellectual, or mechanical processes. The term often describes a condition where a particular function is not keeping pace with a standard or anticipated timeline.

   迟缓的，发展或进程受阻的

   • The scientist observed the retarded growth of the plant under low-light conditions.
   • Due to the cold weather, the concrete's hardening process was notably retarded.
   • A retarded ignition timing can cause the engine to lose power.
   • The retarded reaction speed in the chemical mixture was unexpected.

   同义词behinddelayedimpededlaggingstuntedunderdeveloped

   反义词acceleratedadvanceddevelopedforwardprecociousprogressive

2. Less advanced in mental, physical, or social development than is considered typicalC1formalscientific

   Referring to a person or animal whose intellectual or emotional growth is significantly below the norm for their age group. This clinical usage has largely fallen out of favor in medical and social contexts due to its pejorative connotations, being replaced by more precise and respectful terminology like 'intellectual disability'.

   智力或发育迟缓的

   • Historically, the term 'mentally retarded' was used in clinical diagnoses, but it is no longer acceptable.
   • The report referred to the patient as having a retarded developmental trajectory.
   • Outdated educational materials might still contain the phrase 'educationally retarded'.
   • Advocacy groups have worked to remove the stigmatizing label 'retarded' from legislation.

   同义词backwardslowunderdeveloped

   反义词advancedprecocious

3. Foolish, stupid, or extremely silly (offensive slang)slang

   Used as a highly offensive and contemptuous insult to describe a person, idea, or action perceived as incredibly stupid, senseless, or nonsensical. This meaning is colloquial and carries a strong derogatory charge. Its use is widely condemned as disrespectful and hateful.

   愚蠢的、白痴的（侮辱性俚语）

   • Calling that idea retarded is not only unkind but completely unproductive.
   • He was kicked out of the forum for using the word 'retarded' as an insult.
   • That was a really retarded mistake, and it cost us the game.
   • Don't be so retarded; think before you act.

   同义词cretinousdumbfeeblemindedhalf-wittedidioticimbecilicmoronicstupidthick

   反义词cleverintelligentsensiblesmartwise

• 该词过去用于泛指智力发育障碍人士，现已被视为过时且带有冒犯性的用语。

A noun that was formerly used to refer collectively to people with intellectual disabilities, but is now considered outdated and offensive.

不可数

1. People with intellectual disabilities (collective)C2formal

   A term historically used to refer to people collectively who have intellectual disabilities. This term is now considered outdated and offensive; preferred terms are 'people with intellectual disabilities' or 'people with learning disabilities'.

   智力障碍者（集合名词）

   • The term 'the retarded' is no longer used in professional settings.
   • Historically, institutions were built for the retarded, but this language is now avoided.
   • Modern advocacy groups reject the label 'retarded' for people with intellectual disabilities.

   同义词feebleminded

• 动词，意为延迟或减缓某事物的进展或发展。现代用法中，用作名词指人时被视为冒犯，动词形式已基本过时，常被“延迟”或“减缓”取代。

A verb meaning to delay or hold back the progress or development of something. In modern usage, it is considered offensive when used as a noun referring to a person, and the verb form is largely obsolete or replaced by 'delay' or 'slow down'.

1. Slow down or delayB2formal

   To cause something to happen more slowly or later than expected.

   减缓或延迟

   • The heavy rain retarded the construction work.
   • Lack of funding retarded the project's progress.
   • The disease can retard a child's physical development.

   同义词brakecheckcurbdeceleratedelayhamperhold backimpedeobstructset backslowslow down

   反义词accelerateadvanceexpeditefurtherhastenpromotequickenspeed