Found 2 items, similar to antagonistically.
English → English (WordNet)
Definition: antagonistically
antagonistically
adv : in an antagonistic manner;
“he behaves antagonistically
toward his colleagues”
English → English (gcide)
Definition: Antagonistically
Antagonistic
\An*tag`o*nis"tic\, Antagonistical
\An*tag`o*nis"tic*al\, a.
Opposing in combat, combating; contending or acting against;
as, antagonistic forces. --
An*tag`o*nis"tic*al*ly, adv.
[1913 Webster]
They were distinct, adverse, even antagonistic.
--Milman.
[1913 Webster]