Definition of "grossly"

Third-class carriages are grossly overcrowded, with passengers lying on the luggage racks, standing between the benches, and occasionally even riding on the footboards and clinging to the outsides of the coaches for short distances.

1950 February, W. Dendy, “Impressions of the Indian Railways—3”, in Railway Magazine, page 120

Barker believed that evidence was emerging that a "solid proportion" of operations were "grossly uneconomic", and that no amount of improvement in equipment would make them viable. He suggested that "while the superstructure of the report is correct, the foundations require radical re-examination".

2023 March 8, David Clough, “The long road that led to Beeching”, in RAIL, number 978, page 42

A draft deal to cut global fossil fuel production is “grossly insufficient” and “incoherent” and will not stop the world from facing dangerous climate breakdown, according to delegates at the UN’s Cop28 summit.

2023 December 11, Fiona Harvey, Patrick Greenfield, Nina Lakhani, Adam Morton, Damian Carrington, “Cop28 draft climate deal criticised as ‘grossly insufficient’ and ‘incoherent’”, in The Guardian‎