un assuming (adjective) unassuming: shy
Sinonime: backward,
bashful,
diffident,
humble, lowly,
meek,
modest, mousy,
plain, prim,
quiet,
reserved, retiring, self-effacing,
simple, unambitious, unassertive,
unobtrusive, unostentatious, unpretending,
unpretentiousAntonime: bold,
brave,
confident,
presumptuous