juggernaut

noun

1. A literal or metaphorical force or object regarded as unstoppable, that will crush all in its path.

2. UKIrelandsometimes derogatoryA large, cumbersome truck or lorry, especially an artic.

3. An institution that incites destructive devotion or to which people are carelessly sacrificed.

4. A crude idol of Krishna

5. A massive inexorable force that seems to crush everything in its wayperson

   Similar: steamroller