Pristine
Pristine /ˈprɪs.tiːn/ US /prɪˈstiːn/ (adj)
immaculate and clean, neat and tidy, clean, perfect, new and in good condition, impeccable, faultless, flawless, unspoiled, untouched:
Having no access to a pristine bath in the garrison, I had to make do somehow.
Antonyms: soiled, developed
Noun: pristineness
Adverb: pristinely