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catalysts

NOUN

something which incites activity

Synonyms

STRONGEST

impetus incentive motivation stimulant

STRONG

adjuvant agitator enzyme goad impulse incendiary incitation incitement reactant reactionary spur synergist

WEAK

radical stimulus spark plug wave maker

Antonyms

STRONGEST

block hindrance

WEAK

blockage preventer prevention

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Over the decades, scientists have explored their use in catalysts, advanced materials, energy technologies, sensors, and drug delivery systems.

From Science Daily • May 22, 2026

Tewari posited that one of the catalysts needed “in order for the Regeneron story to turn around” was stability in Regeneron’s U.S.

From Barron's • May 18, 2026

FSD overseas and robot production represent two potential catalysts for Tesla stock.

From Barron's • May 13, 2026

The Chinese renminbi is 20% undervalued against the U.S. dollar, but there are two catalysts that could get it moving, say Goldman Sachs strategists.

From MarketWatch • May 11, 2026

Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G’s classes to truly be catalysts for change.

From "The Freedom Writers Diary" by The Freedom Writers