perennial

Từ điển Oxford Advanced Learner 8th

per·en·nial [perennial perennials] adjective, noun BrE [pəˈreniəl] NAmE [pəˈreniəl]
adjective
1. continuing for a very long time; happening again and again
•the perennial problem of water shortage
•that perennial favourite, hamburgers
•Colonialism in different forms is a perennial theme of history.
2. (of plants)living for two years or more

Word Origin:
mid 17th cent. (in the sense ‘remaining leafy throughout the year, evergreen’): from Latin perennis ‘lasting the year through’ + ↑-ial.
Derived Word: ↑perennially
 
noun
any plant that lives for more than two years
compare ↑annual, ↑biennial

Word Origin:
mid 17th cent. (in the sense ‘remaining leafy throughout the year, evergreen’): from Latin perennis ‘lasting the year through’ + ↑-ial.
 

• Từ đồng nghĩa / Synonyms:
  recurrent, repeated
• Từ trái nghĩa / Antonyms:
  annual, one-year, biennial, two-year