IPA: /ˌʌnəˈsjuːmɪŋ/
KK: /ʌnəˈsjuːmɪŋ/
Not drawing attention to oneself; modest and humble in nature.
Despite her talent, she remained unassuming and never sought the spotlight.
Unassuming → It is formed from "un-" (meaning not) and "assuming" (from Latin "assumere", meaning to take up or adopt). The word describes someone who does not take on an air of superiority or self-importance, hence not assuming a prominent or arrogant demeanor.
Think of someone who is 'not' ('un-') 'taking on' ('assumere') a boastful attitude — that's why unassuming means modest or humble.