Dullness

вя́лость

vjálostʹ

(quality of being uninteresting)

затупле́ние

zatuplénije

(bluntness of an edge)

ма́товость

mátovostʹ

(lack of visual brilliance)

нея́ркость

nejárkostʹ

(lack of visual brilliance)

ту́пость

túpostʹ

(quality of being slow to understand)

ту́склость

túsklostʹ

(lack of visual brilliance)

туповатость

tupovatostʹ

(bluntness of an edge)

тупоумие

tupoumije

(quality of being slow to understand)