agonistic
Concise Oxford English Dictionary © 2008 Oxford University Press:
agonistic/aɡəˈnɪstɪk/
▶adjective
- 1 polemical; combative.
■ Zoology (of animal behaviour) associated with conflict.
- 2 Biochemistry relating to or acting as an agonist.
– derivatives
agonistically adverb.
agonistically adverb.
– origin C17: via late L. from Gk agōnistikos, from agōnistēs ‘contestant’, from agōn ‘contest’.
'agonistic' also found in these Oxford entries:

