West Indies 297 (da Silva 100*, Woakes 3-59) and 28 for 0 (Brathwaite 20*) beat England 204 (Mahmood 49, Leach 41*, Seales 3-40) and 120 (Mayers 5-18) by ten wickets
Grenada: England slumped to a chastening 10-wicket defeat on the fourth day of the third Test to lose their series against West Indies 1-0.
After a dismal third day, they began 103-8, leading by just 10, and the hosts claimed the final two wickets within the first hour to have them all out for 120.
Victory in Grenada came just 30 minutes later, leaving a sorry England at one of the lowest points in recent memory.
West Indies cantered to their target of 28 inside five overs to clinch the Richards-Botham trophy.
England have now lost four Test series in a row - five if the unfinished India series which Joe Root's side trail 2-1 is included - and are winless in nine matches.
The defeat, which comes on the back of a humiliating 4-0 Ashes loss, leaves England bottom of the World Test Championship table and looks set to reignite intense debate about the state of the men's Test team.