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opioid Synonyms
Another word for opioid
Choosing another word for opioid depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• noun (Context 1)
Any of a class of natural, semi-synthetic, or synthetic substances that bind to specific receptors in the central nervous system to reduce pain, induce sleep, or produce euphoria.
Usage Example
"The physician prescribed a mild narcotic to help manage the patient's severe post-surgical pain."
Strong
narcotic
opiate
painkiller
analgesic
• adjective (Context 2)
Relating to, resembling, or acting as a substance that binds to the body's opium receptors to produce pain relief or narcotic effects.
Usage Example
"Researchers are investigating how endogenous opiate peptides regulate the human body's response to stress and pain."
Strong
opiate
narcotic
analgesic
Opposites of opioid
The opposite of opioid shifts depending on context. Common opposites include:
nonopioid
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Opioid. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/opioid