Synonyms of seasonal

1 Syllable
odd
2 Syllables
weekly, yearlong, fitful, broken, tramper, checked, monthly, hourly, odd-lot, rhythmic, cyclic, shifting, serial
3 Syllables
routine, iterant, metrical, punctuated, stop-and-go, perennial, rhythmical, orbital, infrequent, cyclical, recurring, spasmodic, periodic, recurrent, centennial, arrested, epochal, hit-or-miss
4 Syllables
seasonable, occasional, discontinuing, alternate, discontinuous, intermittent, isochronous, periodical, migratory, isochronal, migrational, migratorial, interrupted
5 Syllables
iterative, transmigratory
6 Syllables
on-again-off-again