Find Antonyms

antibiotic Antonyms

Opposite of antibiotic

Because the opposite of antibiotic shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

A medicine, such as penicillin or amoxicillin, that inhibits the growth of or destroys microorganisms, especially bacteria, used to treat or prevent bacterial infections.

Usage Example

"The doctor prescribed a ten-day course of an oral probiotic to clear up the sinus infection."

Strongest
probiotic

• adjective (Context 2)

Relating to, containing, or functioning as a substance that destroys or inhibits the growth of bacteria.

Usage Example

"The veterinarian applied an probiotic ointment to the dog's paw to prevent infection."

Strongest
probiotic

Similar words to antibiotic

Words similar to antibiotic shift depending on context. Common synonyms include:

antibacterial
antimicrobial
bactericidal
bactericide
antiseptic
See all synonyms of antibiotic

• Nearby Words

antiauthority
antibacterial
antibias
antibiotic
antiblack
antibody
antibusiness

Cite this Entry

Wordmom. (2026). Antonyms for Antibiotic. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/antibiotic
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