IPA: //ʌnˈfʌst//
KK: /ʌnˈfʌst/
Not worried or bothered about something; calm and relaxed.
She remained unfussed despite the chaos around her.
Unfussed → It is formed from "un-" (meaning not) and "fussed" (from the verb "fuss", which originates from the late 19th century, possibly from the dialectal English word "fuss", meaning to show unnecessary concern or excitement). The word "unfussed" means not showing unnecessary concern or excitement, indicating a calm or relaxed demeanor.
Think of 'not' ('un-') being added to 'fussed', which means to show worry or excitement. This helps you remember that 'unfussed' describes someone who is calm and not worried.