The meaning of UNCOMMON is not ordinarily encountered : unusual. How to use uncommon in a sentence. Synonym Discussion of Uncommon.

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UNCOMMON definition: 1. not seen, happening, or experienced often: 2. An uncommon quality, especially a human quality…. Learn more.

UNCOMMON definition: not common; unusual; rare. See examples of uncommon used in a sentence.

uncommon (ʌnˈkɒmən) adj 1. outside or beyond normal experience, conditions, etc; unusual

Definition of uncommon adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Anything uncommon is rare or unusual, like your uncommon last name, which all of your friends have trouble pronouncing. When you add the prefix un- to common, "occurring or done often," you get its …

Jan 26, 2026 · Adjective uncommon (comparative more uncommon or uncommoner, superlative most uncommon or uncommonest) Rare; not readily found; unusual. (clarification of this definition is …

UNCOMMON meaning: 1 : not often found, seen, or experienced unusual; 2 : not ordinary remarkable or exceptional

If you describe something as uncommon, you mean that it does not happen often or is not often seen. Fortunately, cancer of the breast in young women is uncommon.