abnormal · adjective /æbˈnɔːr.məl/
Word family
Nouns: normality/normalcy, abnormality, normalcy
Adjectives: normal, abnormal
Adverbs: normally, abnormally
abnormal
C1 different from what is normal or usual, in a way which is strange or dangerous
Dictionary examples:
abnormal behavior/conditions
We had an abnormal amount of snow.
Learner example:
You are all obliged to inform other worker[s] about the danger if you should notice anything that is abnormal. (Certificate in Advanced English; C1; Polish)