perpetuality
ungroundedness
unchangedness
unpriggishness
persistingly
undiscernibleness
sticktoitiveness
continualness
stableness
permanentness
unchangefulness
tunefulness
unperturbability
regularness
unshrinkability
uncompulsiveness
uncomplaisance
unrepentingness
impersistence
if at first you don't succeed, try try again
persistence
unsinkableness
ceaselessness
unsinkability
uncontrollability
unpreventability
undisputedness
incessantness
unswervingness
unpresumingness
immoderateness
immoderation
unpreventableness
incessancy
perdurance
undistinguishableness
unappeasedness
unthreateningness
uncongeniality
unexcusableness
unhallowedness
unexcusability
stoppability
uncheckered
untrendiness