Definition of oppugnant in English:

oppugnant

adjective

formal
  • Opposing; antagonistic.

    hostile, aggressive, threatening, antagonistic, pugnacious, bellicose, truculent, confrontational, argumentative, quarrelsome, disputatious, contentious, militant, combative
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Origin

Early 16th century: from Latin oppugnant- ‘fighting against’, from the verb oppugnare (see oppugn).

Pronunciation

oppugnant

/əˈpəɡnənt/