In a condition or state of stimulation.(adjective)
Simple past tense and past participle of stimulate.(verb)
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Use "stimulated" in a sentence
"Research does show that children can naturally absorb the pronunciation and rhythm of another language (prior to about age 13) and that learning new languages keeps your brain stimulated when you get older."
"The fact of the matter is Palin stimulated debate."
"Unfortunately, the economy being stimulated is China's."