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alkaline Synonyms

Another word for alkaline

Choosing another word for alkaline depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Having the chemical properties of an alkali, or containing alkali; having a pH greater than 7.

Usage Example

"Hydrangeas often produce pink blossoms when grown in slightly basic soil."

Strongest
basic
Strong
alkalescent
antacid

• noun (Context 2)

An alkaline substance, chemical compound, or battery.

Usage Example

"The technician neutralized the spilled acid by carefully applying a mild alkali."

Strongest
alkali
base

Opposites of alkaline

The opposite of alkaline shifts depending on context. Common opposites include:

acidic
acid
sour
See all opposites of alkaline

• Nearby Words

aliveness
alix
alkali
alkaline
alkie
alky
all

Cite this Entry

Wordmom. (2026). Synonyms for Alkaline. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/alkaline
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