antilapsarian
/ˌæn.tɪˌlæpˈsɛəɹi.ən/
antilapsarian means one who does not believe that mankind has fallen from a better state. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
antilapsarian is pronounced /ˌæn.tɪˌlæpˈsɛəɹi.ən/.
Why “antilapsarian” is a great word
ANTILAPSARIAN — [Noun] One who denies or disbelieves the doctrine of the Fall of Man, the belief that humanity has declined from an original state of grace or perfection. From the prefix anti- ("against") and lapsarian, from Latin lapsus ("a fall"). Unlike a *lapsarian*, who upholds the core belief in the Fall, or a *supralapsarian*, who debates the theological sequence of events within that framework, the antilapsarian rejects the foundational premise of a lost Eden. It is the posture of one who sees in a tangled forest not a ruined garden but a world in its first flourishing, who finds in a child's first lie not original sin but an original spark of selfhood, and who perceives in the weathered lines of an aging face not a map of decline but a testament to endurance—a quiet, radical faith that we are not fallen, but simply home.
Etymology
From anti- + lapsarian.
noun
- One who does not believe that mankind has fallen from a better state.