Political correctness

n. avoidance of expressions/terms or actions that may be considered offending or discriminatory to specific people (as on issues that involve race or sexual affinity or gender)

Political correctness (PC or politically correct) is a term used to describe language, ideas, policies, or behaviour seen as seeking to minimize offence to groups of people. Conversely, the term politically incorrect is used to refer to language or ideas that may cause offense or that are unconstrained by orthodoxy.
See more at Wikipedia.org...

Noun
1. avoidance of expressions or actions that can be perceived to exclude or marginalize or insult people who are socially disadvantaged or discriminated against
(synonym) political correctitude
(antonym) political incorrectness
(hypernym) correctness