irresistible
1. [ adjective ] impossible to resist; overpowering
Synonyms: resistless
Examples:

"irresistible (or resistless) impulses" "what happens when an irresistible force meets an immovable object?"

Related terms: resistible overpowering
2. [ adjective ] overpoweringly attractive
Examples:

"irresistible beauty"

Related terms: attractive
Similar spelling:   irresistibly
  irresistibility