The English do is not normal (9)
I believe the answer is:
irregular
I believe this is a double definition.
'the english do is' is the first definition.
('do' is an irregular verb)
'not normal' is the second definition.
(I know that irregular is the opposite attribute of normal)
(Other definitions for irregular that I've seen before include "unusual for a > partisan?" , "Out of order" , "Out of the ordinary" , "Unpredictable" , "Abnormal" .)