unassuming
un-uh-SOO-mingadjMeaning not drawing attention to yourself; quiet and humble
Memory hook UN-ASSUMING: you’d never ASSUME. The quiet woman in the plain sweater, reading in the back row, is the famous author everyone came to see. You’d never assume it: she is unassuming.
The unassuming man in the back row turned out to be the famous author.
In context For a shop that sells the best bread in the state, it is surprisingly unassuming: no sign, no fancy windows, just a plain green door and a line of customers.
Similar humble, modest, unpretentious, low-key
Opposite pretentious, showy, arrogant