mindmap root((充足)) plentiful implies a great or rich supply, often of something that is not regularly or universally available: peaches are ~ this summer. ample implies a generous sufficiency to satisfy a particular requirement: an ~ amount of food to last this winter. abundant suggests an even greater or richer supply than does plentiful: has surprisingly ~ energy for a woman her age. copious stresses largeness of supply rather than fullness or richness: ~ examples of bureaucratic waste.