yearlong

/ˈjɪrˌlɔŋ/
adjective
  1. Lasting for a period of one year.
    • The museum's yearlong exhibition attracted visitors from many countries.
    • The team completed a yearlong study on climate change.
    • She took a yearlong break from work to travel the world.
Antonyms
What does "yearlong" mean? | whatsthatwordmean | whatsthatwordmean