Here's what rhymes with worldsustaining.
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taming naming framing blaming flaming gaming maiming shaming claiming renaming declaiming inflaming proclaiming exclaiming reclaiming disclaiming taking changing painting paying dating stating staying baking bathing spacing staging basing chasing pacing paving baiting chafing paging staking tailing taping bailing baying making saying breaking playing raising waiting facing laying placing ranging saving trading failing praying rating sailing shaking shaping weighing arranging blazing devastating fading gazing mating racing raging scaling surveying tracing waking waving bracing casing fainting gaping lading mailing obeying plating praising railing shading shaving spraying swaying tasting trailing unchanging updating wailing weighting braking hating phrasing raiding raking raving scathing skating slaying wading waging whaling assailing availing flaking gating gauging hailing nailing parading pasting phasing plaything preying raping straying veiling abating assaying basting braiding braving braying caving draping faking flailing haying hazing neighing plaguing plaiting strafing waiving operating amazing awaiting separating escaping grading grazing modelling wasting behaving craving debating decaying delaying detailing exchanging grating persuading pervading scraping appraising evading glazing hesitating mistaking partaking suffocating unfailing acquainting awaking bleating cascading curtailing debasing dilating dissipating effacing entailing erasing overtaking quaking repaying saturating unveiling allaying bewailing buffeting graying prostrating restating situating upbraiding creating relating prevailing undertaking engaging fascinating generating replacing advocating conveying displaying embracing estimating facilitating illustrating invading originating translating activating associating betraying degrading educating elevating imitating irritating isolating liberating mediating radiating undulating upgrading agitating alleviating decorating displacing equating evaporating officiating oscillating unavailing validating blockading deviating disobeying elucidating forsaking inhaling mainspring moderating narrating negating paraphrasing perforating permeating rearranging remaking reshaping tolerating vacillating actuating automating collating corroborating deflating defraying denaturing desolating dissociating enervating hibernating inflating innovating nauseating obviating overgrazing reinstating renovating resonating retracing revelling subjugating undeviating indicating alternating demonstrating participating penetrating cultivating dominating engraving initiating accelerating accommodating anticipating appreciating celebrating cooperating differentiating emanating fluctuating insulating motivating terminating aggravating allocating animating assimilating collaborating designating elaborating escalating exaggerating lubricating meditating mitigating modulating navigating necessitating portraying annihilating crusading dedicating delegating deliberating emigrating exasperating excavating fabricating germinating interlacing intimating irrigating legislating liquidating masquerading obliterating postulating refrigerating reiterating remodelling ventilating vindicating adjudicating antedating confiscating disengaging downgrading enunciating exacerbating gravitating instigating interchanging masturbating percolating perpetrating relegating remonstrating reverberating scintillating supplicating unhesitating urinating calculating circulating evaluating regulating stimulating concentrating contemplating eliminating illuminating integrating investigating negotiating compensating complicating culminating graduating precipitating propagating alienating appropriating captivating commemorating consolidating countervailing debilitating disseminating exhilarating intimidating invigorating nominating perpetuating proliferating regenerating simulating speculating aggregating ameliorating conciliating degenerating delineating deprecating duplicating emulating enumerating eradicating implicating incubating legitimating recreating replicating repudiating segregating stipulating subordinating accentuating attenuating authenticating consecrating denigrating depreciating emancipating explicating extricating fulminating impersonating interpolating invalidating menstruating mutilating promulgating recuperating rehabilitating ruminating substantiating tabulating underestimating incorporating coordinating deteriorating formulating humiliating intoxicating manipulating approximating articulating disintegrating excruciating predominating reciprocating contaminating evacuating exterminating interrogating amalgamating electroplating encapsulating extenuating inactivating inaugurating incapacitating infuriating ingratiating preponderating recirculating communicating accumulating discriminating congratulating incriminating coagulating extrapolating inoculating