Synonyms of stimulus

stimulus

noun

ˈstim-yə-ləs 

as in incentive

something that arouses action or activity

seeing a Broadway play for the first time was the stimulus for her career in the theater

Synonyms & Similar Words

• incentive
• impetus
• encouragement
• motivation
• stimulant
• impulse
• momentum
• provocation
• boost
• spur
• catalyst
• yeast
• fuel
• reason
• instigation
• goad
• incitation
• inducement
• shot in the arm
• incitement
• cause
• consideration
• invitation
• motive
• antecedent
• spark
• grounds
• occasion
• catalyzer

Antonyms & Near Antonyms

• disincentive
• counterincentive

Example Sentences

Recent Examples of stimulus

Several days of this, Britton said, can cause neurons to become more sensitive, such that minor stimuli, like the ticking of a clock or the sound of another person’s breath, can start to feel overwhelming—as can emotions such as rage and grief. — Olga Khazan, The Atlantic, 4 Sep. 2026

Shape-memory polymers can be programmed to return to a particular shape after exposure to a stimulus, often heat. — Kaif Shaikh, Interesting Engineering, 30 Aug. 2026

Surrounded by the healing landscape of the Sonoran Desert, the luxe getaway has welcomed travelers seeking to put aside digital overload and other overwhelming stimuli in order to reconnect with the best versions of themselves. — Robb Report Studio, Robb Report, 28 Aug. 2026

What is your approach to writing, in terms of outside stimuli? — Mikey O'Connell, HollywoodReporter, 24 Aug. 2026