When a word or phrase is used to try make an unpleasant idea easier hear the called a?

There are a few terms that could fit this description, depending on the specific context:

* Euphemism: This is the most common and general term for a word or phrase used to replace a more blunt or offensive term. Examples include "passed away" for "died" or "let go" for "fired."

* Downplaying: This refers to using language that minimizes the severity or impact of an unpleasant idea. For example, "a slight setback" instead of "a major failure."

* Sugarcoating: This refers to making an unpleasant idea seem more palatable by using positive or neutral language. For example, "a learning opportunity" instead of "a mistake."

* Political correctness: This refers to the use of language that avoids expressions or actions that could be perceived as offensive to particular groups. However, it can also be used to describe the avoidance of potentially unpleasant truths.

The best term to use depends on the specific situation and the intent behind the language used.