Not even out of the ordinary (3)
I believe the answer is:
odd
I believe this is a double definition.
'not even' is the first definition.
('odd' is the opposite to 'even')
'out of the ordinary' is the second definition.
(odd means unusual)
(Other definitions for odd that I've seen before include "Peculiar sort of number?" , "Rum" , "Peculiar in uneven way" , "Bizarre - occasional" , "Number not divisible by two" .)