isochronal (adjective) isochronal: recurrent
Sinonime: affected, at a loss for words, beaten, blown-away, bowled-over, buried, conquered,
defeated, overthrown, run-over,
speechless, swamped, swept off one's feet,
taken, unable to continue
Antonime: indifferent, unbothered,
unconcerned, unflappable, unmoved