1a(1) : glaringly apparent normally thanks to inexcusable badness or objectionableness a gross error (two) : out-and-out, utter a gross injustice b : seen without the support of the microscope a gross lesion c archaic : quickly obvious Now to all sense 'tis gross you're keen on my son.— William https://cloudsareghosts69134.blogscribble.com/12150139/the-smart-trick-of-dgross-that-nobody-is-discussing