off-season noun 2adverb 1forms 1 noun2 •The part of the year when business is most slack and there are fewest clients or visitors.Seaside resorts in the off-season are really depressing. •A period of time when regular competitions are not being held, or when an athlete is not participating in competitions.Alternating off-season and precontest cycles in bodybuilding over a period of years will result in the relatively quick development of a championship physique. — 1983 adverb1 •During the off-season.Why don't we go to the Cape this weekend, and walk on the beach. I don't think I can stand to stay in this apartment one day longer. And it's not too expensive off season. — 1981 formsoff-seasons