perennial
/pəˈɹɛni.əl/adjective
Continuing or staying active through the whole year, or without ever stopping.
Example sentences
- “Parking is a perennial problem in this part of town.”
- “The spring feeds a perennial creek that never runs dry.”
Gardeners contrast it with 'annual': annual plants die each year, perennials come back. It also describes recurring things, as in 'a perennial favorite'.