Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.


a. Capable of or subject to change or alteration.
b. Prone to frequent change; inconstant: mutable weather patterns.
2. Tending to undergo genetic mutation: a mutable organism; a mutable gene.

[Middle English, from Latin mūtābilis, from mūtāre, to change; see mutate.]

mu′ta·bil′i·ty n.
mu′ta·bly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mutability - the quality of being capable of mutation
changeability, changeableness - the quality of being changeable; having a marked tendency to change; "the changeableness of the weather"
alterability - the quality of being alterable
vicissitude - mutability in life or nature (especially successive alternation from one condition to another)
immutability, immutableness, fixity - the quality of being incapable of mutation; "Darwin challenged the fixity of species"


[ˌmjuːtəˈbɪlɪtɪ] Nmutabilidad f


nWandlungsfähigkeit f, → Mutabilität f (spec)
References in classic literature ?
These considerations, and the influence of personal confidences and attachments, would be likely to induce every new President to promote a change of men to fill the subordinate stations; and these causes together could not fail to occasion a disgraceful and ruinous mutability in the administration of the government.
By necessitating a change of men, in the first office of the nation, it would necessitate a mutability of measures.
Why, it may be asked, have all the most eminent living naturalists and geologists rejected this view of the mutability of species?
Although naturalists very properly demand a full explanation of every difficulty from those who believe in the mutability of species, on their own side they ignore the whole subject of the first appearance of species in what they consider reverent silence.
He did indeed account somewhat unfairly for this sudden change; for besides some hard and unjust surmises concerning female fickleness and mutability, he began to suspect that he owed this want of civility to his want of horses; a sort of animals which, as they dirty no sheets, are thought in inns to pay better for their beds than their riders, and are therefore considered as the more desirable company; but Mrs Whitefield, to do her justice, had a much more liberal way of thinking.
The mutability in the public councils arising from a rapid succession of new members, however qualified they may be, points out, in the strongest manner, the necessity of some stable institution in the government.
This outward mutability indicated, and did not more than fairly express, the various properties of her inner life.
Pickwick, 'on the strange mutability of human affairs.
War emerged as a state of permanent mutability, uncertainty, and contingencies that operated by "laws of probability" (57).
When dealing with creativity, mutability and incoherence are the only symptoms you do not need to treat.
My work toys with the concepts of glorification, objectification and modification, touching on the mutability of identity, gender and beauty.
Mission 3: Assessment of land hardness and mutability, Consolidation of the land strategy.