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

However, the concern remains that future policy changes, ownership transfers or legal precedents could potentially alter how this genetic data is accessed and used. —Lars Daniel, Forbes.com, 21 May 2025

Such moments can strain relationships with the player and the club, while potentially altering a game’s outcome. —Geoff Scott, New York Times, 21 May 2025

Over thousands of years, Earth’s axis of rotation has slowly shifted, altering the locations of the celestial poles—the points in the sky around which scientists map stars. —Sonja Anderson, Smithsonian Magazine, 21 May 2025

Like the tush push, a vote was tabled at the most recent gathering for further discussion on altering the seeding rules to base the order strictly on overall winning percentage rather than guaranteeing division winners the first four spots in each conference. —Dave Campbell, Chicago Tribune, 20 May 2025

Phrases Containing alter

• alter ego