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 Some organisms are subjected to passive locomotion, carried by water or air (jellyfish, spiders), while many parasites (from ticks to hookworms) ride on or inside other animals. Literary Hub, 22 June 2026 Health officials are warning that the New World screwworm, a flesh-eating parasite once thought eradicated from the US, has resurfaced and is threatening cattle, wildlife and pets. Alexandra Banner, CNN Money, 22 June 2026 Texas has established animal quarantine zones across 14 counties to restrict movement and prevent the parasite's spread. Mateo Rosiles, USA Today, 22 June 2026 The parasite has now been discovered in cattle in south Texas and New Mexico, which prompted Canada to slap bans on live cattle from the region. Andrew Muhammad, Fortune, 21 June 2026 See All Example Sentences for parasite
Recent Examples of Synonyms for parasite
Noun
  • 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
  • The wetland habitats of Condylura cristata are rich in small-bodied invertebrates — earthworms, leeches, aquatic insect larvae — but the individual caloric value of each prey item is low.
    Scott Travers, Forbes.com, 20 May 2026
Noun
  • Use a clean microfiber cloth or soft sponge to scrub the surface from top to bottom, and use an old toothbrush to clean the grout lines.
    Karen Brewer Grossman, Southern Living, 20 June 2026
  • Rinse your sponge or cloth and wipe again.
    Kate Van Pelt, The Spruce, 20 June 2026
Noun
  • 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
  • While patterns are complex, China’s investment in South Korea grows, while North Korea remains a costly dependent of Beijing.
    Arthur I. Cyr, Chicago Tribune, 10 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 26 Jun. 2026.

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