A national or public opponent
(Noun)
Synonyms:
  1. trespasser
  2. alien
  3. attacking force
Someone who enters by force in order to conquer
(Noun)
Synonyms:
  1. encroacher

Words Related to Invader

Related words are words that are directly connected to each other through their meaning, even if they are not synonyms or antonyms. This connection may be general or specific, or the words may appear frequently together.