The meaning of ABNORMAL is deviating from the normal or average; often : unusual in an unwelcome or problematic way. How to use abnormal in a sentence.

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Something that is abnormal is out of the ordinary, or not typical. Abnormal is a combination of the Latin prefix ab which means “away from,” and the English word normal.

ABNORMAL definition: 1. different from what is usual or average, especially in a way that is bad: 2. different from…. Learn more.

Jan 16, 2026 · When a medical test result is flagged as “abnormal,” the immediate reaction is often alarm and concern. This term carries a precise, objective meaning in a clinical setting that differs …

Someone or something that is abnormal is unusual, especially in a way that is worrying.

abnormal (æbˈnɔːməl) adj 1. not normal; deviating from the usual or typical; extraordinary 2. informal odd in behaviour or appearance; strange

Abnormal refers to anything that deviates from what is considered normal or usual; it is something that does not conform to standard, expected, or established patterns or behavior.

Nov 17, 2025 · Discover what “abnormal” truly means, how it’s used, and when it matters. Simple, expert-backed guide with examples and explanations.

Something that is abnormal is out of the ordinary, or not typical. Abnormal is a combination of the Latin prefix ab which means “away from,” and the English word normal.