collapsible /kəˈlæps.ə.bəl/noun 3adjective 1forms 3 noun3 •Any object that can be collapsed to save space.Some umbrellas can be unfolded manually, while the others can spring open automatically. Umbrellas are genuine collapsibles. — 2017 •A kind of boat that can be collapsed for greater portability. •A display element that can be collapsed to hide it from view. adjective1 •Designed to be collapsed, especially so as to be more compact when not in use. formscollapsibles · more collapsible · most collapsible