adj.

Not subject or susceptible to change.

immutability im·mu'ta·bil'i·ty or im·mu'ta·ble·ness n.
immutably im·mu'ta·bly adv.

adjective

Incapable of changing or being modified: inalterable, inflexible, invariable, ironclad, rigid, unalterable, unchangeable. See flexible/rigid.

adj

Definition: unchangeable
Antonyms: alterable, changeable, flexible, mutable, variable

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IN BRIEF: Unchangeable.

It wasn’t by accident that the Gettysburg address was so short. The laws of prose writing are as immutable as those of flight, of mathematics, of physics. — Ernest Hemingway (1899-1961), U.S. author. Letter, July 23, 1945. Selected Letters, ed. Carlos Baker (1981).

Dansk (Danish)
adj. - uforanderlig

Nederlands (Dutch)
onveranderbaar

Français (French)
adj. - immuable

Deutsch (German)
adj. - unveränderlich

Ελληνική (Greek)
adj. - αμετάτρεπτος, αναλλοίωτος, αμετάβλητος

Italiano (Italian)
invariabile

Português (Portuguese)
adj. - imutável

Русский (Russian)
неизменный

Español (Spanish)
adj. - inmutable, inalterable

Svenska (Swedish)
adj. - oföränderlig, oåterkallelig

中文（简体） (Chinese (Simplified))
不可变的, 不能变的, 不变的

中文（繁體） (Chinese (Traditional))
adj. - 不可變的, 不能變的, 不變的

한국어 (Korean)
adj. - 변경할 수 없는

日本語 (Japanese)
adj. - 不変の, 不易の

العربيه (Arabic)
‏(صفه) ثابت‏

עברית (Hebrew)
adj. - ‮שאי אפשר לשנותו, בלתי-משתנה‬

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