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Definition of chumminess

chumminess

/ˈtʃʌm.i.nəs/
chum · mi · ness
Adverb:chummily
•
Adjective:chummy
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chumminess Lexical Profile

chumminess Game Scores & Validity

• noun

1

The quality or state of being friendly, sociable, and familiar, sometimes to an excessive or overly informal degree.

Example

"The sudden chumminess between the two longtime political rivals surprised many observers at the press conference."

Synonyms
View all synonyms for chumminess
Antonyms
View all antonyms for chumminess

• Rhymes for chumminess

• Nearby Words

chugalug
chum
chum salmon
chumminess
chummy
chump
chunk

Word Origin & Etymology

Derived from the adjective "chummy" plus the suffix "-ness." The root noun "chum" originated in late 17th-century British university slang as a shortening of "chamber-fellow" (roommate).

Cite this Entry

Wordmom. (2026). Definition of Chumminess. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/chumminess
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