cyclical (adjective) cyclical: happening at regular intervals
Sinonime: afflict, bleed,
carry on, crucify, distress,
disturb, eat heart out, excruciate, harrow, hurt,
labor,
lament,
martyr,
pain, rack, sing the blues, squirm, stew over,
strain,
strive,
struggle, take it badly, torment, torture,
try, wince,
worry,
writheAntonime: not worry