mutable

[ myoo-tuh-buhl ]

adjective

1. liable or subject to change or alteration.

   Synonyms: variable, changeable

2. given to changing; constantly changing; fickle or inconstant:

   the mutable ways of fortune.

   Synonyms: unsteady, unsettled, vacillating, unstable

   Antonyms: stable

3. Computers. (in object-oriented programming) of or noting an object having properties whose values can change while the object itself maintains a unique identity.

mutable

/ ˈmjuːtəbəl /

adjective

1. able to or tending to change
2. astrology of or relating to four of the signs of the zodiac, Gemini, Virgo, Sagittarius, and Pisces, which are associated with the quality of adaptability Compare cardinal fixed

Derived Forms

• ˈmutably, adverb
• ˌmutaˈbility, noun

Other Words From

• mu·ta·bil·i·ty [myoo-t, uh, -, bil, -i-tee] mu·ta·ble·ness noun
• mu·ta·bly adverb
• hy·per·mu·ta·ble adjective
• hy·per·mu·ta·bly adverb
• non·mut·a·ble adjective
• non·mut·a·bly adverb
• un·mu·ta·ble adjective

Word History and Origins

Origin of mutable¹

First recorded in 1350–1400; Middle English, from Latin mūtābilis, equivalent to mūtā(re) “to change” + -bilis -ble

Word History and Origins

Origin of mutable¹

C14: from Latin mūtābilis fickle, from mūtāre to change

Example Sentences

Cyrus turns her divorce into a showcase for her mutable identity and powerhouse voice on ‘Endless Summer Vacation,’ led by the smash empowerment jam ‘Flowers.’

From Los Angeles Times

In the course of his restless, mutable career, Gordon, 72, has written all kinds of music, from classical pieces for solo piano or chamber orchestra to dance scores and experimental operas.

From New York Times

But when you take a step backwards and you look at the gameplay, a station wagon is mutable.

From Seattle Times

Godzilla belongs to Japan in the same way that, say, the Doctor of “Doctor Who” will always be British, even though that character is from a different planet and mutable in every other respect.

From Los Angeles Times

For decades, researchers considered mouse songs instinctual, the fixed tunes of a windup music box, rather than the mutable expressions of individual minds.

From New York Times