Synonyms of permanence

1 Syllable
fact
2 Syllables
lifing, hardness
3 Syllables
endlessness, steadiness, sturdiness, constancy, solidness, hardnesses
4 Syllables
continuance, stabilities, stability, timelessness, permanency, eternalness, perpetuation, existence, abidingness
5 Syllables
durability, everlastingness, eternality, durabilities
6 Syllables
dependability, immutability