- deviating from or inconsistent with the common order, form, or rule; irregular; abnormal: Advanced forms of life may be anomalous in the universe.
- not fitting into a common or familiar type, classification, or pattern; unusual: He held an anomalous position in the art world.
- incongruous or inconsistent.
- Grammar. irregular.
- deviating from the normal or usual order, type, etc; irregular, abnormal, or incongruous
1640s, from Late Latin anomalus, from Greek anomalos “uneven, irregular” (see anomaly). Related: Anomalously; anomalousness.