anomalous

anom·a·lous

adj \ə-ˈnäm-ə-ləs\

Definition of ANOMALOUS

: deviating from normal <anomalous development> <anomalous pulmonary venous drainage—Physicians' Current Procedural Terminology>; specifically : having abnormal vision with respect to a particular color but not color-blind <she was almost red anomalous—Nature>