Words That Rhyme With "Decomposing" :
2 syllables:
closing, dozing, hosing, nosing, posing, rosing
3 syllables:
composing, disclosing, disposing, enclosing, exposing, foreclosing, imposing, opposing, proposing, supposing
4 syllables:
juxtaposing, predisposing, reimposing, unimposing