Here's what rhymes with imperturble.
burble verbal nonverbal Words that almost rhyme with imperturble
purple turtle fertile girdle hurdle myrtle curdle hurtle infertile journal paternal tubercle dermal chervil burgle circle eternal thermal colonel maternal kernel diurnal epidermal servile epidural sternal vernal gurgle commercial internal dispersal fraternal nocturnal hurtful inertial deferral puerperal subdural mirthful demurral disbursal external reversal referral rehearsal infernal squirrel isothermal encircle geothermal illiberal scleral bicameral clitoral conferral forkful infomercial universal controversial transversal noncommercial transferal semicircle hydrothermal noncontroversial