Here's what rhymes with lethargizing.
rising arising sizing prising prizing uprising advising authorizing devising revising summarizing apologizing appetizing summarising apprising satirizing amortizing anodizing appetising baptising sanitizing advertising surprising analyzing organizing utilizing analysing oxidizing practising theorizing colonizing ionizing optimizing authorising baptizing despising disguising energizing fertilizing harmonizing moralizing polarizing subsidizing chastising fantasizing formalizing paralysing terrorizing theorising aggrandizing atomizing capsizing eulogizing hybridizing pulverizing sermonizing vaporizing verbalizing carbonizing idolizing itemizing pasteurizing plagiarizing tyrannizing unappetizing urbanizing vulcanizing comprising criticizing stabilizing supervising civilizing merchandising mobilizing modernizing socializing symbolizing jeopardizing liberalizing localizing magnetizing memorizing normalizing paralyzing philosophizing scrutinizing sensitizing standardizing sterilizing sympathizing tantalizing catalyzing customizing digitizing dramatizing evangelizing galvanizing globalizing immunizing legalizing prioritizing proselytizing publicizing temporizing unsurprising brutalizing feminizing finalizing fraternizing hydrolyzing magnetising penalizing privatizing proselytising vitalizing vocalizing anesthetizing catalysing catechizing demonizing dramatising empathizing hypnotizing memorising merchandizing moisturizing mythologizing polarising polymerizing pressurizing prioritising scandalizing sensitising solemnizing televising temporising traumatizing exercising recognizing emphasizing characterizing compromising enterprising maximizing minimizing generalizing neutralizing patronizing specializing synthesizing capitalizing categorizing centralizing crystallizing demoralizing equalizing legitimizing rationalizing reorganizing synchronizing visualizing actualizing antagonizing democratizing depolarizing economizing homogenizing humanizing improvising metabolizing monopolizing popularizing revitalizing stigmatizing disorganizing exorcising familiarizing hypothesizing immobilizing marginalizing mesmerizing naturalizing politicizing romanticizing secularizing commercializing epitomizing mechanizing memorializing metastasizing popularising propagandizing radicalizing regularizing stigmatising trivializing unionizing womanizing destabilizing externalizing internalizing nationalizing revolutionizing systematizing initializing materializing personalizing categorising desensitizing editorializing unenterprising conceptualizing industrializing decentralizing dehumanizing demagnetizing tranquilizing criminalizing overemphasizing particularizing professionalizing tranquillizing depersonalizing individualizing intellectualizing internationalizing sentimentalizing contextualizing Words that almost rhyme with lethargizing
diving tithing dicing driving arriving deriving pricing writhing knifing striving reviving thriving enticing splicing slicing surviving sacrificing depriving conniving contriving apprenticing streptomycin dying buying dining timing biting typing piling piping tying dyeing tiring pining biding biking chiding retyping tiding writing trying binding fighting lying firing mining riding drying filing guiding hiding lighting lining shining abiding citing hiring liking retiring signing ageing wiping wiring hiking plying priming prying rhyming siding sighing sighting spying whining bribing righting siting styling twining vying blighting fining liming repining spiking whiting shying viking knighting opining priding seining wining finding striking applying crying defining flying smiling climbing deciding denying designing dividing lightning occupying sliding winding admiring assigning refining relying residing trifling uniting aspiring blinding frying gliding obliging reciting replying ascribing defying horrifying resigning rewriting stifling striding undying untiring alighting aligning beguiling delighting divining fancying fortifying minding griping hireling rifling slighting sniping belying deriding indicting bandying bridling providing underlying exciting acquiring combining declining supplying grinding implying inspiring inviting presiding reminding overlying overriding undermining compiling edifying expiring inciting reclining underwriting verifying certifying colliding disliking igniting mortifying perspiring ratifying redefining subsiding underlining decrying falsifying nullifying redesigning reuniting stultifying stupefying subdividing exiling nonbinding ossifying overwriting vilifying describing satisfying gratifying modifying multiplying terrifying confining justifying prescribing qualifying unifying complying confiding conspiring inclining stereotyping subscribing amplifying glorifying notifying rectifying sanctifying transcribing beautifying expediting inscribing pacifying solidifying uninspiring uninviting unsmiling unwinding vivifying acidifying calcifying codifying enshrining fructifying personifying proscribing ramifying recombining typifying unexciting specifying clarifying classifying reconciling signifying coinciding magnifying purifying simplifying testifying diversifying prophesying quantifying unsatisfying emulsifying intertwining mystifying crucifying liquefying putrefying unedifying identifying circumscribing disqualifying electrifying objectifying intensifying exemplifying indemnifying oversimplifying