affectatious

adjective

af·​fec·​ta·​tious ˌa-ˌfek-ˈtā-shəs also -fik- 

: characterized or marked by affectation : affected

Do some people adopt an affectatious dialect to suit their audience?

—Pittsburgh Tribune Review, 12 Jan. 2010

Word History

Etymology

affectati(on) + -ous

First Known Use

1676, in the meaning defined above

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