Synonyms of oblivions

2 Syllables
lethe, neglect
3 Syllables
amnesia, disregard, nirvana, abeyance, unconcern
4 Syllables
unconsciousness, obliviousness, carelessness, forgetfulness, unmindfulness
5 Syllables
indifference, inadvertence, unawareness, insensibleness
6 Syllables
insensibility