An opponent or enemy. / One who antagonizes or stirs. / (biochemistry) A chemical that binds to a receptor but does not produce a physiological response, blocking the action of agonist chemicals.

Contending or acting against. / (biochemistry) Relating to an antagonist

plural of antagonist

In an antagonistic manner.

Alternative form of antagonistic

(medicine) A gesture or position serving to interrupt dystonic symptoms.

plural of geste antagoniste

Obsolete form of antagonistic.