Diffused rhymes with:
defused, defused, confused, defused, fused, infused, refused, suffused, transfused, abused, accused, amused, bemused, confused, defused, disabused, excused, fused, infused, misused, mused, overused, recused, refused, suffused, transfused, underused, unused, used
Diffused sounds like:
debased, deepest, defaced, defect, defected, deficit, defused, depict, depicted, deposed, deposit, deposited, devastate, devastated, devised, diapsid, divest, divested