saisonnier bedeutet auf Englisch

seasonal▼◼◼◼(of, related to or reliant on a season)
adjective
[UK: ˈsiː.zən.l̩] [US: ˈsiː.zən.l̩]The decline isn't so sharp after seasonal adjustment. = Le recul n'est pas si grand après ajustement saisonnier.

hobo [hobos]▼(migratory worker)
noun
[UK: ˈhəʊ.bəʊ] [US: ˈhoboʊ]

swagman [swagmen]▼(person who travels around with a swag; specifically, an itinerant person, often seeking work in exchange for food and lodging)
noun
[UK: swˈaɡmən swˈaɡmen] [US: swˈæɡmən swˈæɡmen]

seasonal worker▼◼◼◼noun
[UK: ˈsiː.zən.l̩ ˈwɜːk.ə(r)] [US: ˈsiː.zən.l̩ ˈwɝː.kər]