Definition of "sluttish"

sluttish

adjective
comparative more sluttish, superlative most sluttish
1. (vulgar) Like a slut; sexually promiscuous.
  Quotations
  His name was perhaps the least likely ever to have been young: it evoked for me the sunless complexion, unaired suiting, steel-rimmed glasses of a ledger clerk in a vanished age. Or had done so, before I found my beautiful, cocky, sluttish Arthur—an Arthur it was impossible to imagine old.
  1988, Alan Hollinghurst, The Swimming-Pool Library, paperback edition, London: Penguin Books, page 2
2. (chiefly dated) Dirty or untidy; disorderly.
  Quotations
  […] an air of liberal, though sluttish, plenty, indicated the wealthy farmer.
  1815 February 24, [Walter Scott], Guy Mannering; or, The Astrologer. […], volumes (please specify |volume=I to III), Edinburgh: […] James Ballantyne and Co. for Longman, Hurst, Rees, Orme, and Brown, […]; and Archibald Constable and Co., […]
  […] and it was dark and sluttish as all Burmese rooms are, though U Po Kyin had furnished it 'Ingaleik fashion' with a veneered sideboard and chairs […] "
  1934 October, George Orwell [pseudonym; Eric Arthur Blair], Burmese Days, New York, N.Y.: Harper & Brothers, Publishers
  "Check plates and cutlery for tell-tale signs of sluttish washing up […] "
  1996 February 7, Helen Fielding, “Bridget Jones's Diary”, in The Independent‎, London, retrieved 3 March 2009