Mammoth Uncensored Word List:
48 words ending with fs, 10 letters long

acidproofs babyproofs bombproofs coralreefs cowlstaffs creampuffs crossruffs disbeliefs dustproofs feedstuffs fireproofs fisticuffs flagstaffs foodstuffs foolproofs goofproofs handicuffs handstaffs headscarfs heatproofs jackstaffs leakproofs leitmotifs looseleafs misbeliefs mothproofs newsbriefs nonbeliefs outreliefs ovenproofs overbriefs overstaffs overstuffs packstaffs pikestaffs plaintiffs plowstaffs rainproofs rustproofs semidwarfs superwaifs tearproofs veinstuffs waitstaffs waterleafs waveproofs whipstaffs windproofs