perennial
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/icons/point.icon CONTINUAL, CONTINUOUS, CONSTANT, INCESSANT, PERPETUAL, PERENNIAL mean characterized by continued occurrence or recurrence.
CONTINUAL often implies a close prolonged succession or recurrence.
e.g. continual showers the whole weekend
CONTINUOUS usually implies an uninterrupted flow or spatial extension.
e.g. football's oldest continuous rivalry
CONSTANT implies uniform or persistent occurrence or recurrence.
e.g. lived in constant pain
INCESSANT implies ceaseless or uninterrupted activity.
e.g. annoyed by the incessant quarreling
PERPETUAL suggests unfailing repetition or lasting duration.
e.g. a land of perpetual snowfall
PERENNIAL implies enduring existence often through constant renewal.
e.g. a perennial source of controversy
adjective
lasting or existing for a long or apparently infinite time; enduring or continually recurring:
永遠に続く, 絶え間ない〈問題･困難･人気など〉(constant, continual)
e.g. his perennial distrust of the media
e.g. perennial manifestations of urban crisis.
(of a plant) living for several years:
多年生の〈植物〉(→ biennial)
e.g. tarragon is perennial. Compare with annual, biennial.
attributive (of a person) apparently permanently engaged in a specified role or way of life:
e.g. he's a perennial student.
(of a stream or spring) flowing throughout the year.
枯れることのない〈川･泉〉
noun
a perennial plant:
〘植〙 多年生植物, 多年草; 永遠に続くもの(→ hardy perennial)
e.g. perennials will transform the garden in summer.
ORIGIN
mid 17th century (in the sense ‘remaining leafy throughout the year, evergreen’): from Latin perennis ‘lasting the year through’ + -ial.