蛮
mán · HSK 7
pretty
sounds like man, as in man, that is pretty good — 蛮好 = mán hǎo, quite good
Colloquial intensifier meaning quite or pretty, as in 蛮好 mán hǎo (pretty good). The bottom component 虫 (insect) is a leftover from its older sense of southern tribes; the everyday spoken meaning today is simply rather or quite.
蛮 — phonetic 䜌 (luán) + insect 虫
A semantic-phonetic compound: 虫 (insect/creature) gives the meaning and 䜌 supplies the sound. Originally written 蠻, it referred to non-Han peoples of the south, whom Han writers labeled with the 'creature' radical. The sense broadened to 'wild, barbaric, unruly,' and in modern usage it also means 'quite' or 'rather.'