same·ness 
/ˈseɪmnəs/ noun
/ˈseɪmnəs/ noun [singular] : the quality or state of being alike or of not changing
▪ the sameness of the two methods ▪ There is a sameness to his stories that makes them too predictable. ▪ the sameness [=monotony] of daily life
▪ the sameness of the two methods ▪ There is a sameness to his stories that makes them too predictable. ▪ the sameness [=monotony] of daily life
