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activator Synonyms

Another word for activator

Choosing another word for activator 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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• noun (Context 1)

A chemical agent, enzyme, or protein that initiates or accelerates a chemical reaction or biological process, such as gene transcription.

Usage Example

"Calcium ions serve as a vital catalyst for numerous enzymes involved in muscle contraction."

Strong
catalyst
stimulant
accelerator
promoter

• noun (Context 2)

A person, device, or mechanism that switches on, triggers, or sets a system or process into operation.

Usage Example

"Pressing the manual trigger on the wall immediately engaged the emergency sprinkler system."

Strong
trigger
initiator
actuator
starter

Opposites of activator

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

inhibitor
deactivator
repressor
suppressant
See all opposites of activator

• Nearby Words

actionable
activate
activation
activator
active
actively
activeness

Cite this Entry

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