The phrase "massive devastation" means a situation or event that causes extremely severe damage, destruction, or harm on a large scale. Full definition
These disasters come on the heels of massive devastation caused by Hurricane's Harvey and Irma. (pointsmilesandmore.com)
«This deal will definitely result in massive devastation in Africa and small island states. (treehugger.com)
Unless you have a hard - on for massive devastation and cheesy heroics, you'd probably save yourself a little money and a lot of time by just watching the promotional advertisements for The Day After Tomorrow instead. (qwipster.net)