Synonyms of alter

alter

verb

ˈȯl-tər 

1

as in to modify

to make different in some way

can't you alter your plans just slightly so we can leave 10 minutes earlier?

Synonyms & Similar Words

• modify
• change
• remodel
• transform
• rework
• revise
• recast
• remake
• refashion
• vary
• redo
• revamp
• deform
• make over
• mutate
• metamorphose
• revolutionize
• transmute
• transfigure
• exchange
• convert
• regenerate
• retool
• commute
• rejigger

Antonyms & Near Antonyms

• set
• fix
• stabilize
• freeze

2

as in to fix

to remove the sex organs of

contends that cats and dogs that have been altered make better pets

Synonyms & Similar Words

• fix
• neuter
• sterilize
• emasculate
• desex
• castrate
• geld
• spay

Synonym Chooser

How is the word alter different from other verbs like it?

Some common synonyms of alter are change, modify, and vary. While all these words mean "to make or become different," alter implies a difference in some particular respect without suggesting loss of identity.

slightly altered the original design

When is it sensible to use change instead of alter?

In some situations, the words change and alter are roughly equivalent. However, change implies making either an essential difference often amounting to a loss of original identity or a substitution of one thing for another.

changed the shirt for a larger size

In what contexts can modify take the place of alter?

The synonyms modify and alter are sometimes interchangeable, but modify suggests a difference that limits, restricts, or adapts to a new purpose.

modified the building for use by the disabled

When might vary be a better fit than alter?

Although the words vary and alter have much in common, vary stresses a breaking away from sameness, duplication, or exact repetition.

vary your daily routine

Example Sentences

Recent Examples of alter

Together, the ongoing legal battles, the potential referendum to strike down the map and the looming race for the 5th District will mark a pivotal moment for Kansas City, potentially altering the city’s political makeup for years. —Kacen Bayless, Kansas City Star, 19 Feb. 2026

In addition, natural light can dramatically alter a color's appearance throughout the day. —Shagun Khare, Martha Stewart, 19 Feb. 2026

Uthmeier’s office altered the application to say 689 domestic violence victims would be helped. —Camila Gomez, The Orlando Sentinel, 19 Feb. 2026

In 2024, the IOC altered its typical run of show to hold the women’s gold medal basketball game and women’s marathon on the final day of Paris competition, rather than men’s events. —Jacob Feldman, Sportico.com, 19 Feb. 2026

Phrases Containing alter

• alter ego