anomalous
adjective
[ əˈnɒm(ə)ləs ]
• deviating from what is standard, normal, or expected.
• "an anomalous situation"
Similar:
abnormal,
atypical,
non-typical,
irregular,
aberrant,
exceptional,
freak,
freakish,
odd,
bizarre,
peculiar,
unusual,
out of the ordinary,
inconsistent,
incongruous,
deviant,
deviating,
divergent,
eccentric,
rare,
singular,
backasswards,
Origin:
mid 17th century: via late Latin from Greek anōmalos (from an- ‘not’ + homalos ‘even’) + -ous.