Here's what rhymes with lenghthening.
Words that almost rhyme with lenghthening
lengthening threatening reckoning lessening reddening leavening editing settling strengthening beckoning deafening leveling deadening sectioning freshening reveling nettling reputing mentioning parenting menacing sentencing meddling crediting peddling entrancing meriting terracing ferreting pedaling premising resettling seconding beveling caroling deluging headhunting bevelling deputing pensioning shellacking necklacing periling tenanting pebbling kenneling hennaing questioning trembling unsettling accrediting breakfasting heralding nonthreatening pencilling processioning restrengthening developing resembling embarrassing assembling enveloping inheriting embezzling imperiling stencilling disheveling discrediting unquestioning credentialing reassembling redeveloping subpenaing disassembling disinheriting overdeveloping