overwater adjective 2verb 1forms 3 adjective2 •By or across water, especially of travel.This detailed account of diversification shows that most of New Zealand's biota results from overwater colonization, rather than survival since New Zealand separated from Australia . — 2009 •Built or situated on stilts in the ocean. verb1 •To water too much.Cyperus are natives of tropical swamps, so it's virtually impossible to overwater them. — 2018 formsoverwatered · overwatering · overwaters