Ageism

[ˈeɪdʒˌɪzəm]
Definition:

Discriminatory behaviour against employees or other stakeholders on the basis of their age. This is contrary to Australian anti-discrimination legislation.

Part of speech:
noun
Synonyms:
prejudice
bias
bigotry
intolerance
narrow-mindedness
unfairness
inequity
favouritism
one-sidedness
partisanship
Use in a sentence:
Ageism in recruitment is an increasing problem.
Ageism