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