Here's what rhymes with upcurving.
observing serving curving unnerving deserving swerving preserving reserving conserving undeserving unswerving Words that almost rhyme with upcurving
birthing nursing cursing surfing unearthing immersing coercing conversing reversing traversing dispersing rehearsing disbursing burning turning churning jerking purging chirping perching purring working learning occurring searching stirring asserting bursting sterling wording yearning affirming curling hurting lurking merging whirling blurring herding hurling surging alerting averting curbing twirling verging darning lurching shirking spurring spurting whirring yearling emerging returning discerning diverting diverging swirling deferring deterring flirting hurtling manuring skirting subverting thirsting perturbing perverting scourging smirking concerning referring disturbing confirming converting inserting preferring recurring conferring converging exerting concurring incurring overturning researching reworking inferring inverting reaffirming reverting squirming usurping transferring disconcerting