What does "anomalous" mean?

Deviating from the normal; marked by incongruity or contradiction; aberrant or abnormal.

What is a synonym for "anomalous"?

Common synonyms include: aberrant, abnormal, abnormal, absurd, aliens, amorphous.

/əˈnɒmələs/ adj

adj ·Moderate ·College level

Adjective

1
Deviating from the normal; marked by incongruity or contradiction; aberrant or abnormal.
"statistically anomalous"
2
Of uncertain or unknown categorization; strange.
3
Having anomalies.

Adjective

"The general theory of relativity explains the anomalous perihelion precession of the planet Mercury."

From Late Latin anōmalos, from Ancient Greek ἀνώμᾰλος (anṓmălos).