Here's what rhymes with siphuncle.
peduncle carbuncle granduncle Words that almost rhyme with siphuncle
fungal jungle bungle antifungal suckle subtle funnel shovel shuttle buckle chuckle shuffle suppl supple hovel huddle hustle knuckle subtile caecal lungful fuddle double couple muscle humble tunnel bubble puzzle bustle muzzle rubble ductile muddle nuptial puddle rustle stubble tional ductal muffle mussel publ ruffle scuffle scuttle smuggle tuple cuddle cudgel fumble juggle phrasal pustule tussle rappel runnel snaffle snuggle guzzle nuzzle pummel truckle duckbill gunnel snuffle tamale tousle jugful tubful mugful struggle trouble bundle frontal tumble colourful crustal jumble rumble stumble friable honeysuckle lustful mumble bumble reshuffle truffle playable vocable befuddle nonvocal rumple unbuckle flyable gumball tumbrel vincible oversubtle kerfuffle addable cupsful pinocle autumnal crumble rebuttal bestowal conformal grumble dirigible redouble trustful crumple decouple trundle uncouple acquirable beatable tamable triumphal damnable thermocouple nonviable prenuptial attachable filtrable unplayable dividable unloveable conformable prefrontal subcortical distrustful suboptimal mistrustful unnameable duodecimal ignitable unlikable heptagonal disgruntle imperishable uncharitable exploitable unbridgeable containable imperturbable indissoluble translatable unarguable compoundable transmutable untranslatable indemonstrable