1. (noun)invasion the act of invading; the act of an army that invades for conquest or plunder Synonyms: encroachment, intrusion
2. (noun)invasion, encroachment, intrusion any entry into an area not previously occupied Synonyms: violation, usurpation, trespass, intrusion, invasion, encroachment, impact, impingement
3. (noun)invasion (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body Synonyms: encroachment, intrusion
Synonyms, Thesaurus & Antonyms of 'invasion'
English Synonyms and Antonyms
1. invasion An attack may be by word; an aggression is always by deed. An assault may be upon the person, an aggression is upon rights, possessions, etc. An invasion of a nation's territories is an act Synonyms: attack, aggression, incursion, invasion, onslaught, assault, infringement, onset, trespass, encroachment, intrusion Antonyms: defense, repulsion, resistance, retreat, submission, surrender
Synonyms for invasion 
