perennial
1. [ adjective ] (botany) lasting three seasons or more
Examples:

"the common buttercup is a popular perennial plant"

Related terms: annual biennial botany
2. [ adjective ] recurring again and again
Synonyms: repeated recurrent
Examples:

"perennial efforts to stipulate the requirements"

Related terms: continual
3. [ adjective ] lasting an indefinitely long time; suggesting self-renewal
Examples:

"perennial happiness"

Related terms: long
4. [ noun ] (botany) a plant lasting for three seasons or more
Related terms: plant rattlesnake_master perennate
Similar spelling:   perennially