ageism

English

age +‎ -ism. Coined in 1969 by Robert Neil Butler.

ageism (countable and uncountable, plural ageisms)

The treating of a person or people, especially youth or seniors, differently from others based on assumptions, prejudices or/and stereotypes relating to their age.
Bias against older adults (typically those in their sixties or older, but other times even younger if not even before middle-age).

the treating of a person or people differently from others based on assumptions or stereotypes relating to their age

Basque: adinkeria
Catalan: edatisme m
Chinese:
Mandarin: please add this translation if you can
Dutch: leeftijdsdiscriminatie (nl) f
Esperanto: aĝismo
Estonian: vanuseline diskrimineerimine
Finnish: ikäsyrjintä
French: âgisme (fr) m
German: Altersdiskriminierung (de) f
Hebrew: גִּילָנוּת‎ (he) f (gilanút)
Hungarian: please add this translation if you can
Ido: evismo (io)
Indonesian: ageisme
Italian: ageismo (it)
Japanese: please add this translation if you can
Korean: please add this translation if you can
Maori: toihara taipakeke
Norman: âgisme m
Polish: ageizm (pl) m
Portuguese: idadismo m
Romanian: ageism n, agism n
Russian: дискримина́ция по во́зрасту f (diskriminácija po vózrastu), эйджи́зм (ru) m (ejdžízm)
Spanish: edadismo m, edatismo m
Swedish: åldersdiskriminering (sv) c, ålderism (sv) c
Thai: please add this translation if you can
Turkish: please add this translation if you can
Vietnamese: phân biệt tuổi tác
West Frisian: leeftydsdiskriminaasje c