Find Synonyms
isthmus Synonyms
Another word for isthmus
Choosing another word for isthmus depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• 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
The opposite of isthmus shifts depending on context. Common opposites include:
strait
Cite this Entry
Wordmom. (2026). Synonyms for Isthmus. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/isthmus