perennial

adjective

• 1lasting or existing for a long or apparently infinite time; enduring or continually recurring:his perennial distrust of the media perennial manifestations of urban crisis
• [attributive] apparently permanently engaged in a specified role or way of life:he’s a perennial student

• 2(of a plant) living for several years:cow parsley is perennialCompare with annual, biennial.

• 3(of a stream or spring) flowing throughout the year: spring streams rise from perennial springs

noun

• a perennial plant: perennials will transform the garden in summerSee also