unchanged

If something is unchanged, it's exactly the same as it was earlier. If your grandmother's home is unchanged, it still has the same paisley curtains and orange shag carpeting she purchased in the 1970s.

When you visit an old friend you haven't seen in years and find him a foot taller and sporting a new beard, you might say, "You've changed!" If, however, your friend looks and acts in exactly the same way he did in the past, he's unchanged. Because many things change constantly, it can be a pleasant surprise to find unchanged things, from landscapes to people to your dad's famous apple pie.

Definitions of unchanged
1

adj not made or become different

“the causes that produced them have remained unchanged
Synonyms:
idempotent
unchanged in value following multiplication by itself
same
unchanged in character or nature
unvaried, unvarying
lacking variety
Antonyms:
changed
made or become different in nature or form
denatured, denaturised, denaturized
changed in nature or natural quality
exchanged
changed for (replaced by) something different
transformed
given a completely different form or appearance
varied
broken away from sameness or identity or duplication
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adj remaining in an original state

Synonyms:
unaltered
dateless, timeless
unaffected by time
in-situ, unmoved
being in the original position; not having been moved
unedited
not changed by editing
unreduced
not altered by reduction
unrevised
not improved or brought up to date
Antonyms:
altered
changed in form or character without becoming something else
adjusted
(especially of garments) having the fit or style adjusted
changed
made or become different in some respect
edited, emended
improved or corrected by critical editing
paraphrastic
altered by paraphrasing
revised
improved or brought up to date
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