Spotless rhymes with:
atlas, countless, cutlass, doubtless, ductless, effortless, flightless, fruitless, hartless, heartless, limitless, listless, meatless, meritless, pilotless, pointless, restless, rootless, tactless, tasteless, thoughtless, ticketless, warrantless, weightless, witless
Spotless sounds like:
sheftel's, shiftless, subtitles, svetlik