Origin: 1590–1600; < L
animadversiōn- (s. of
animadversiō) a heeding, censure, equiv. to
animadvers(
us) (ptp. of
animadvertere to heed, censure;
see animadvert ) +
-iōn- -ion 
Related forms: an⋅i⋅mad⋅ver⋅sion⋅al, adjective
Synonyms:
1. aspersion, reflection, derogation.