Fruitless rhymes with:
rootless, rootless, atlas, countless, cutlass, doubtless, ductless, effortless, flightless, hartless, heartless, limitless, listless, meatless, meritless, pilotless, pointless, restless, rootless, spotless, tactless, tasteless, thoughtless, ticketless, warrantless, weightless, witless
Fruitless sounds like:
fairytales, fertilize, fertilizes