Adjectives that collocate with ENEMY (Sorted by collocation rank)
arch (85), worst (85), natural (70), worse (70), sworn (69), old (67), common (66), mortal (65), main (65), real (65), greatest (64), powerful (61), dangerous (61), last (59), deadly (58), political (55), bitter (54), invisible (53), hidden (51), ancient (50), great (50), formidable (48), dead (46), intimate (45), big (41), implacable (38), traditional (38), declared (37), chief (34), principal (34), bad (32), bigger (31), familiar (31), inner (22), hideous (9), creeping (8), indispensable (7).