unassuming russian

• скро́мный

  modest, humble, unassuming, lowly, frugal, unpretentious

• скро́мненький

  rather modest, quite humble, unassuming, a little modest

• небро́ский

  unobtrusive, modest, plain, unassuming, understated, discreet

• беспритяза́тельный

  unexacting, unassuming, easily pleased

• скро́мничавший

  modest, shy, unassuming, self-effacing, who was modest