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isthmus Synonyms
Another word for isthmus
Looking for synonyms for isthmus? Sourced from our comprehensive thesaurus, here is a list of similar words and another word for isthmus, organized by relevance and context.
• noun (Context 1)
A relatively narrow strip of land, bordered on both sides by water, that connects two larger landmasses.
Usage Example
"The neck of Panama connects North and South America while separating the Atlantic and Pacific Oceans."
Strong
neck
• noun (Context 2)
A narrow organ, passage, or piece of tissue connecting two larger parts of an organ or anatomical structure, such as the lateral lobes of the thyroid gland.
Usage Example
"The surgeon carefully examined the connection of the thyroid gland to ensure there were no irregular nodules."
Weak
connection
Opposites of isthmus
Looking for antonyms? The opposite of isthmus varies depending on the context. Here are a few common opposites:
strait
Cite this Entry
Wordmom. (2026). Synonyms for Isthmus. In Wordmom Thesaurus. Retrieved Oct 12, 2026, from https://wordmom.com/synonyms/isthmus