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, there are a few areas where design draws the line, Broekman said – for example, any design change that compromises the safety of the vehicle or alters its overall design or silhouette. —Jackie Charniga, USA Today, 4 Sep. 2025

Even if there’s no rain in the forecast, excess humidity can prevent proper absorption and alter the stain’s drying process, while low humidity can cause premature drying. —Kamron Sanders, Better Homes & Gardens, 4 Sep. 2025

Factory Zero also altering plans The production changes come on the heels of partial shutdowns at electric vehicle manufacturing plant Factory Zero, in Detroit-Hamtramck. —Jackie Charniga, Freep.com, 4 Sep. 2025

The two issues, which are aimed at representative and direct democracy, set up what could be the most consequential special session in recent history, potentially altering the trajectory of Missouri for years. —Kacen Bayless, Kansas City Star, 4 Sep. 2025

Phrases Containing alter

• alter ego