Abnormal-Subnormal | Commonly Confused Words

Abnormal

/æbˈnɔːməl/

Not usual, different from what is normal or expected

The abnormal weather patterns are causing concern.Her abnormal heartbeat prompted further tests.The structure showed abnormal signs of wear and tear.

/sʌbˈnɔːm(ə)l/

Used to describe something that is below the usual or expected level

The engine's subnormal performance was a concern.Her subnormal score on the test surprised everyone.Living conditions in that area are subnormal.

Abnormal suggests something that deviates significantly from the norm or standard.
Subnormal implies something is below the normal standard or average.
Abnormal often carries a stronger connotation than subnormal, indicating a noticeable variance.
In medical terms, abnormal often indicates a disorder or condition needing attention, while subnormal might suggest lesser severity.
Remember, ab in Latin often means from, indicating deviation, and sub means below, indicating a position beneath something.