pat-back (noun) pat on the back: expression of approval
Sinonime: dependable, even,
expected,
homogeneous, invariable,
logical, of a piece,
persistent,
rational,
same,
steady,
true, true to type, unchanging, undeviating, unfailing, uniform, unvarying
Antonime: disagreeing,
erratic,
incongruous,
inconsistent, inconstant,
irregular, varying