perennial
[adjective]
Synonyms: lasting, abiding, constant, continual, enduring, incessant, persistent, recurrent

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Related Words: durable, perdurable

[TahlilGaran] English Synonym Dictionary ▲

I. pe‧ren‧ni‧al¹ /pəˈreniəl/ adjective
[Date: 1600-1700; Language: Latin; Origin: perennis, from per- 'through' + annus 'year']

1. continuing or existing for a long time, or happening again and again:
Lack of resources has been a perennial problem since the beginning.
Teddy bears are a perennial favorite with children.

2. a plant that is perennial lives for more than two years ⇒ annual
—perennially adverb

[TahlilGaran] Dictionary of Contemporary English ▲

II. perennial² noun [countable]
a plant that lives for more than two years ⇒ annual
⇒ hardy perennial(1)

[TahlilGaran] Dictionary of Contemporary English ▲