Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun excitant

1 sense of excitant

Sense 1
stimulant, stimulant drug, excitant -- (a drug that temporarily quickens some vital process)
       => drug -- (a substance that is used as a medicine or narcotic)

Antonyms of adj excitant

1 sense of excitant

Sense 1
excitant, excitative, excitatory -- ((of drugs e.g.) able to excite or stimulate)

INDIRECT (VIA stimulative) -> depressant -- (capable of depressing physiological or psychological activity or response by a chemical agent)

Similarity of adj excitant

1 sense of excitant

Sense 1
excitant, excitative, excitatory -- ((of drugs e.g.) able to excite or stimulate)
       => stimulative (vs. depressant) -- (capable of arousing or accelerating physiological or psychological activity or response by a chemical agent)