IPA: /ɪnˈsɒləntli/
KK: /ɪnˈsɑləntli/
In a way that shows a lack of respect or rudeness towards someone.
She spoke insolently to her teacher, which got her in trouble.
Insolently → It is formed from "in-" (meaning not) and "solens" (from Latin "solere", meaning to be accustomed or to be used to) and the suffix "-ly" (meaning in a manner). The word "insolently" describes behaving in a manner that is not accustomed or is disrespectful.
Think of 'not accustomed' ('in-') and 'used to' ('solere') to remember that 'insolently' means behaving in a disrespectful or rude manner.