evenness

noun
1
the quality of being calm and not changing or becoming upset
آرامش, متعادل‌بودن, بی‌تلاطم بودن
2
the fact of not changing much in amount, speed, etc.
ثبات, یکنواختی
She possessed a voice of immaculate beauty and evenness of tone.
3
the fact of being equal or the same for each person, team, place, etc.
تساوی, برابری
The population declines took place with remarkable evenness across the nation.
4
the fact that two people or teams are equally balanced or of an equal standard
تعادل, توازن
The score, 6–6, illustrated the evenness of the contest.
5
the quality of being smooth, level and flat
یکنواختی, صاف بودن, هموار بودن
Results will be affected by the degree of evenness of the surface.
6
the fact of being equally spaced and the same size
یکنواختی, برابری, تساوی
She admired the evenness of his teeth.