weathered
The building has a slate roof with bright unweathered tiles.
The outside of the building has a solid and unweathered look.
Considering his age, his face remains remarkably unweathered.
The rocks are relatively unweathered and so they must have been formed quite recently.

SMART Vocabulary: related words and phrases

Undamaged, unbroken or in good condition
(all) in one pieceidiom
ain't
anti-wear
be (as) good as newidiom
be as sound as a bellidiom
be none the worseidiom
resistive
safe
soundness
unbroken
unbruised
unimpaired
uninjured
unmolested
unpolluted
unscarred
walk
walk away
well preserved
worse