Definition of parasitenext
as in leech
a person who is supported by or seeks support from another without making an adequate return a parasite who lived in the family's basement and refused to get a job or pay rent

Synonyms & Similar Words

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Antonyms & Near Antonyms

Synonym Chooser

How does the noun parasite differ from other similar words?

Some common synonyms of parasite are leech, sponge, sycophant, and toady. While all these words mean "a usually obsequious flatterer or self-seeker," parasite applies to one who clings to a person of wealth, power, or influence or is useless to society.

a jet-setter with an entourage of parasites

When is it sensible to use leech instead of parasite?

While the synonyms leech and parasite are close in meaning, leech stresses persistence in clinging to or bleeding another for one's own advantage.

a leech living off his family and friends

When is sponge a more appropriate choice than parasite?

The synonyms sponge and parasite are sometimes interchangeable, but sponge stresses the parasitic laziness, dependence, and opportunism of the cadger.

a shiftless sponge, always looking for a handout

When would sycophant be a good substitute for parasite?

The words sycophant and parasite are synonyms, but do differ in nuance. Specifically, sycophant adds to this a strong suggestion of fawning, flattery, or adulation.

a powerful prince surrounded by sycophants

In what contexts can toady take the place of parasite?

The meanings of toady and parasite largely overlap; however, toady emphasizes the servility and snobbery of the self-seeker.

cultivated leaders of society and became their toady

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of parasite An explosive diarrhea-causing parasite is behind a surge of summer food poisoning cases right before Independence Day. Mary Walrath-Holdridge, USA Today, 2 July 2026 Federal health officials are attempting to track down the source of a microscopic parasite that triggers prolonged gastrointestinal illness, as domestic cases begin to climb for the summer season. Khloe Quill, FOXNews.com, 2 July 2026 Only in these United States can the progeny of people once portrayed as parasites and invaders side with those making the same argument about the latest batch of newcomers. Gustavo Arellano, Los Angeles Times, 1 July 2026 In the wake of the administration's cost-cutting initiatives, more than 20,000 employees are gone from the USDA, which develops and implements agriculture policy and provides resources to producers of livestock vulnerable to the parasite. Stephanie Armour, CBS News, 1 July 2026 See All Example Sentences for parasite
Recent Examples of Synonyms for parasite
Noun
  • The lightning-fast process leeches out flavor and compromises textures, and can produce bland, mushy results.
    Emily Saladino, Bon Appetit Magazine, 25 June 2026
  • The fact is that leeches are relished by everything from walleyes and bass to trout and all the panfish.
    Byron W. Dalrymple, Outdoor Life, 4 June 2026
Noun
  • Allow the solution to work for at least five minutes and, again, starting at the top of the door, scrub with a sponge.
    Mary Marlowe Leverette, The Spruce, 28 June 2026
  • Scrub the grates with an old rag or abrasive dish sponge and rinse well.
    Daley Quinn, Southern Living, 27 June 2026
Noun
  • Evidence of similar injuries was found on another 18-year-old dependent in the couple’s care, resulting in additional misdemeanor assault charges, officials said.
    Mark Price, Charlotte Observer, 29 June 2026
  • Borrowing limits for Parent PLUS are also changing Parent PLUS loans also will be capped at $20,000 a year per student, with a $65,000 lifetime limit per dependent, unless a borrower already has one of those loans.
    Medora Lee, USA Today, 18 June 2026
Noun
  • That will weed out the frauds, freeloaders and slumlords.
    Scott Ostler, San Francisco Chronicle, 1 Mar. 2026
  • That is to buy Apple stock, the greatest freeloader in this AI race.
    Kevin Stankiewicz, CNBC, 27 Feb. 2026
Noun
  • Now, Lilith must team up with Cinderella to fight biker trolls, outrun evil henchmen, and escape the Screaming Woods.
    Kevin Giraud, Variety, 23 June 2026
  • Launched in early 1982, the original MOTU line-up saw He-Man and Skeletor joined by heroes Teela (at this point, the only female character), Man-at-Arms and Stratos; the morally ambiguous Zodac; and a couple of Skeletor's henchmen, Beast Man and Mer-Man.
    Richard Edwards, Space.com, 1 June 2026

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Cite this Entry

“Parasite.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/parasite. Accessed 5 Jul. 2026.

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