Here's what rhymes with sustention.
abstention intention distention subvention indention inattention supervention intervention circumvention contravention nonintervention Words that almost rhyme with sustention
tendon dentin hempen momentum referendum tension pension suspension gentian penman pennon attention mention suggestion chairman ascension pepsin henchmen beckon deaden henchman stepson bellman deafen question direction section seven extension heaven session affection dimension lesson objection weapon brethren contention retention threaten congestion detention digestion lemon lessen reckon resin subjection cession dissension ejection freshman ingestion distension headman leaden leaven melon felon headmen heron pectin abjection chevron freshen penguin destine redden vegan hessian kelvin pressman hellion nelson election perception possession reflection selection aggression convention correction detection eleven injection inspection invention perfection prevention rebellion rejection succession accession hypertension oppression strengthen suppression complexion deception dissection erection obsession secession defection dejection lengthen pretension declension reflexion sexton lepton bisection headsman helpline expression collection connection protection conception depression exception impression infection profession compression reception apprehension concession confession connexion intestine procession projection redemption regression repression resurrection deflection inception insurrection recession resection convection inflection condescension digression disaffection indigestion circumspection indirection preemption redirection confection inflexion selectman autosuggestion refection gremlin trisection discretion comprehension intersection progression exemption imperfection intercession introspection reelection dispossession interception watermelon concretion interjection misdirection reinvention retrospection rhododendron repossession reprehension genuflection recollection contraception misconception predilection decompression disinfection misapprehension disconnection reinfection nonaggression prepossession transgression indiscretion interconnection retrogression incomprehension preconception delicatessen