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Definition of instigator

instigator

/ˈɪn.stɪ.ɡeɪ.tɚ/
in · sti · ga · tor
Plural:instigators
•
Adjective:instigative
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instigator Lexical Profile

instigator Game Scores & Validity

• noun

1

A person who intentionally provokes, incites, or stirs up trouble, conflict, or an undesirable event.

Example

"The principal interviewed several witnesses to identify the primary instigator of the cafeteria food fight."

2

A person who initiates, brings about, or sets in motion an action, policy, or undertaking.

Example

"She was the main instigator behind the neighborhood recycling initiative."

Synonyms
View all synonyms for instigator
Antonyms
View all antonyms for instigator

Word Nuance & Usage

While 'instigator' can occasionally refer neutrally to the initiator of a project or reform, it most frequently carries a negative connotation of someone who stirs up trouble, conflict, or unlawful behavior.

• Nearby Words

instigate
instigation
instigative
instigator
instill
instillation
instinct

Word Origin & Etymology

Borrowed in the 16th century from Latin 'instigator', an agent noun from 'instigare' meaning 'to urge on or goad', built from the root 'stigare' (to prick or goad).

Cite this Entry

Wordmom. (2026). Definition of Instigator. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/instigator
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