Synonyms of jellyfish

jellyfish

noun

ˈje-lē-ˌfish 

as in coward

a person without strength of character

a jellyfish who was afraid to tell her boss that her latest brainstorm was just plain bad

Synonyms & Similar Words

• coward
• reed
• mouse
• sheep
• doormat
• weakling
• wimp
• pussy
• namby-pamby
• wuss
• pushover
• milquetoast
• nebbish
• nervous Nellie

Antonyms & Near Antonyms

• stalwart
• mensch

Example Sentences

Recent Examples of jellyfish

Their arrival adds to a growing list of invasive marine species affecting the Atlantic, including jellyfish with painful stings, which were recently documented along the Jersey Shore. — Anthony Thompson, USA Today, 15 July 2026

The lion's mane jellyfish has been spotted along the coast of Massachusetts and other New England states — and in higher-than-normal numbers usually seen at the start of summer, according to local outlets Cape Cod Times, Swampscott Tides and WCVB. — Kimberlee Speakman, PEOPLE, 1 July 2026

The waves will carry the paralyzed bodies to the shore, and even dead jellyfish have been known to sting. — New Atlas, 30 June 2026

If Arenado has made a career of being a thorn in the Giants’ side, Marte has been a jellyfish up their swim shorts this season. — Andrew Baggarly, New York Times, 30 June 2026