alter-
(Latin: different, other, another; to change, to modify)
Something that can't be changed or made different; unalterableness: The history of a country is a thing or fact of inalterability.
inalterable (adjective), more inalterable, most inalterable
Relating to anything that is not possible to change or to modify: History is inalterable since it has already passed and cannot be replaced or remodelled!
The death of an individual is an inalterable fact that cannot be reversed.
inalterably (adverb), more inalterably, most inalterably
Referring to how something is impossible to redo or to restructure: Contractors told the apartment owner that he had an inalterably old building that should be torn down, and then replaced with a new building.
tamquam alter idem. (Latin phrase)
Translation: "As if a second self."
Cicero used the expression, "as if a second self", to describe a completely trustworthy friend; such as, an alter ego, "other I" or alter idem, "another self" both of which are considered to be one's inseparable friend.
Something that is incapable of being changed: The unalterableness of the elderly Mrs. Smith's death and her home that was totally damaged by the fire caused the rest of her family much distress and sadness.
unalterably (adverb), more unalterably, most unalterably
A reference to how something is incapable of being changed or modified: There is an unalterabley bitter cold season during a Siberian winter.
unalterably (adverb), more unalterably, most unalterably
Characteristic of how a situation is impossible to changed: Someone has said that first significant experiences are usually the most memorable because they unalterably fix themselves in one's mind with greate importance and value.
unaltered (adjective) (not comparable)
A reference to someone or something that remains in an original state or condition: Mr.Edward's had unaltered opinions regarding wars in general because he was a passivist ever since he was a teenager.
Jane sat in an unaltered position during the whole concert because she was totally enwrapped in the soloist's performance.
Uno avulso, non deficit alter. (Latin statement)
Translation: "When one is torn away, another is not wanted."
Motto of the Kingdom of Austria.