Niceness

Etymology

From “nice,” whose history is a case study in drift: from Latin "nescius" (ignorant), through Old French "nice" (foolish, simple), the word meandered through “fussy” and “precise” before settling on “agreeable” only in recent centuries. Its meaning has, fittingly, been endlessly pleasant and vague.

noun · /NYSE-nuhs/
The quality of being pleasant, agreeable, and inoffensive in manner.
What it names
It isolates surface pleasantness — the smooth, likable exterior — as something that can exist entirely apart from genuine care for others.
Example
His niceness was flawless — always smiling, never disagreeing — yet you never felt he actually cared.
Related idea
Sharply distinct from kindness: niceness is about being agreeable and avoiding friction, while kindness is about genuinely acting for another’s good, even when doing so is unpleasant. Its own history is a vivid instance of semantic drift.