Based
Etymology
Repurposed by the rapper Lil B (Brandon McCartney), who around 2010 took "based" — earlier tied to "basehead," a derogatory word for a crack user — and reclaimed it to mean being yourself and not caring what others think. From there it spread across internet culture as a broad compliment for conviction, and was later heavily adopted (and contested) in political online spaces.
adjective · /BAYST/
Admirably true to your own convictions, saying what you think regardless of whether it will win approval.
What it names
A term of praise for unbowed authenticity — for holding a line without checking which way the crowd is leaning. It marks the opposite of cringe: where cringe is judged as approval-seeking, based is judged as approval-proof.
Example
She told the whole committee the plan was doomed and walked out — honestly, based.
Related idea
The near-opposite of cringe; where they part is approval — based ignores the audience, cringe is seen as chasing it.