filter — any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids.
differing — to disagree in opinion, belief, etc.; be at variance; disagree (often followed by with or from): His business partner always differs with him.
hindering — to cause delay, interruption, or difficulty in; hamper; impede: The storm hindered our progress.
lingering — to remain or stay on in a place longer than is usual or expected, as if from reluctance to leave: We lingered awhile after the party.
littering — objects strewn or scattered about; scattered rubbish.
pickering — Edward Charles, 1846–1919, and his brother, William Henry, 1858–1938, U.S. astronomers.
picturing — a visual representation of a person, object, or scene, as a painting, drawing, photograph, etc.: I carry a picture of my grandchild in my wallet.
quivering — the act or state of quivering; a tremble or tremor.
shimmering — a quivering or vibrating motion or image as produced by reflecting faint light or heat waves.
shivering — to shake or tremble with cold, fear, excitement, etc.
simmering — to cook or cook in a liquid at or just below the boiling point.
slithering — to slide down or along a surface, especially unsteadily, from side to side, or with some friction or noise: The box slithered down the chute.
splintering — a small, thin, sharp piece of wood, bone, or the like, split or broken off from the main body.
tinkering — a mender of pots, kettles, pans, etc., usually an itinerant.
whispering — the mode of utterance, or the voice, of a person who whispers: to speak in a whisper.
withering — to shrivel; fade; decay: The grapes had withered on the vine.
Four-or-more syllable rhymes
bewildering — A bewildering thing or situation is very confusing and difficult to understand or to make a decision about.
considering — You use considering to indicate that you are thinking about a particular fact when making a judgment or giving an opinion.