different between unalterably vs unalterable

English

Etymology

unalterable +? -ly

Adverb

unalterably (comparative more unalterably, superlative most unalterably)

1. In an unalterable manner; in a manner that makes it impossible to be altered.

   First experiences are always the most memorable because they fix themselves in the mind unalterably and most powerfully.

   • 1870, William Jones (transl.), Sacontalá; or, The Fatal Ring, Act III, page 59

     Sac. From that instant my affection was unalterably fixed on him—and thence I am reduced to my present langour.

Synonyms

• immutably, unchangeably; See also Thesaurus:uniformly

English

Etymology

un- +? alterable

Adjective

unalterable (comparative more unalterable, superlative most unalterable)

1. incapable of changing or being altered
   • ca. 1909, Mark Twain, Letters from the Earth, Letter VIII:

     ... every statute in the Bible and in the law books is an attempt to defeaat a law of God—in other words an unalterable and indestructible law of nature.

2. irrevocable or irreversible

Synonyms

• inalterable

Antonyms

• alterable

Derived terms

• unalterably

Translations

Anagrams

• unalertable, unrelatable