Here's what rhymes with sentimentalising.
freezing pleasing seizing teasing wheezing appeasing mobilising breezing immobilising idolising emphasising realising sneezing utilising modernising unpleasing centralising fertilising generalising moralising neutralising symbolising tantalising energising idealising monopolising unfreezing evangelising internalising naturalising penalising vitalising immortalising tyrannising urbanising channelising demobilising initialising verbalising vandalising stylising nasalising novelising squeezing displeasing civilising specialising demoralising socialising globalising liberalising localising normalising sterilising brutalising decentralising finalising legalising refreezing subfreezing fantasising immunising mechanising metabolising scandalising feminising nonfreezing vocalising cannibalising devitalising federalising pluralising westernising alkalising fossilising routinising organising stabilising apologising equalising conceptualising nationalising synthesising visualising actualising capitalising eulogising externalising formalising fraternising individualising marginalising materialising revitalising canalising mythologising personalising radicalising solemnising trivialising vulcanising commercialising memorialising signalising compartmentalising marbleizing serialising analogising anthologising overgeneralising emotionalising departmentalising palatalising recognising destabilising rationalising scrutinising humanising industrialising galvanising homogenising criminalising hypothesising internationalising denationalising overemphasising professionalising volatilising womanising editorialising fictionalising metastasising sensationalising conventionalising hospitalising pedestrianising reorganising dehumanising disorganising universalising attitudinising depersonalising intellectualising decriminalising recapitalising institutionalising contextualising photosynthesising Words that almost rhyme with sentimentalising
leaving leasing policing leafing wreathing reefing riving reeving leashing believing breathing achieving perceiving weaving ceasing grieving heaving briefing seething cleaving sheathing thieving unbelieving creasing piecing teething unleashing greasing interleaving fleecing phishing beefing vicing aggrieving sheaving peeving increasing receiving decreasing releasing relieving deceiving unceasing debriefing interweaving bequeathing disbelieving bereaving subleasing deceasing iodising surceasing conceiving retrieving underachieving undeceiving unsheathing anodising reprieving misconceiving overachieving predeceasing rhapsodising preconceiving leading reaching leaning leaping leaching leaking reaping reeling reeking wreaking reaming leeching leaguing being feeling meaning meeting teaching dealing hearing keeping seeing seeking bleeding feeding healing heating preaching sleeping treating appealing beating breeding ceiling cleaning seeming yielding agreeing creeping dreaming greeting intriguing kneeling needing pleading weeping annealing cheating fleeing fleeting freeing gleaming peering sealing seating beaming bleaching creaking deleting peeling peeping seeding shrieking teeming weaning weeding wheeling ceding deeming entreating heaping heeding inbreeding jeering keying kneading peaking seeping sheeting unreasoning beading breaching gleaning greening pealing peeking reviling teaming creaming freaking heeling keening preening beaching beeping peeing seaming cheeping chinning deeding teeing weening bleeping cheeking keeling perilling piquing sleeting treeing unreeling chivvying hieing kneeing retying sleeking uprearing valeting weaseling beaning chivying geeing weeing pieing piing speaking proceeding intervening misleading repeating revealing screening sweeping screaming stealing streaming defeating receding redeeming shielding speeding steaming besieging fatiguing feasting machining scheming secreting seedling skiing sneaking unyielding wielding beseeching demeaning depleting misreading repealing rereading screeching unfeeling unmeaning unvarying acceding careening decreeing defiling fielding interbreeding needling overreaching rehearing reheating steeping streaking unseeing weakling beetling esteeming interceding strewing striping tweaking untying wheedling imperilling mistreating reseeding steeling underfeeding unseating beseeming crisping faceting relining resealing reteaching unsealing queening refiling spiting pureeing skying mitring obsoleting restring spieling tweeting chagrining rosining preceding competing completing exceeding succeeding concealing retreating conceding endearing overseeing convening disagreeing foreseeing impeding overeating overheating overweening squeaking squealing superseding critiquing imbibing overhearing preheating seceding unappealing bespeaking calcining concreting congealing excreting impeaching maltreating overfeeding stampeding supervening farseeing refereeing sidelining leafleting oversleeping phantasying pinwheeling reburying receipting trampolining bestrewing emceeing misspeaking nonyielding alibiing misdealing sightseeing safekeeping inveigling noncompeting cartwheeling guillotining nonspeaking hosteling disesteeming guaranteeing crossbreeding reconvening squeegeeing calcimining garnisheeing fricasseeing quarantining silkscreening