IPA: //nʌnðəˈlɛs//
KK: /nʌnðəˈlɛs/
In spite of that; used to introduce a statement that contrasts with what has just been said.
It was raining; nonetheless, we decided to go for a walk.
Nonetheless → It is formed from "non-" (meaning not) and "the less" (meaning the lesser or smaller amount). The word combines to express the idea of something being true or valid despite a lesser or opposing factor.
Think of 'not' ('non-') and 'the lesser' — this helps you remember that 'nonetheless' means something is true even when considering a smaller or opposing point.