weaselliest

Adjective

weaselly (comparative more weaselly or weasellier, superlative most weaselly or weaselliest)

1. Resembling a weasel (in appearance).
   • The writer had just entered into his eighteenth year, when he met at the table of a certain Anglo-Germanist an individual, apparently somewhat under thirty, of middle stature, a thin and weaselly figure, a sallow complexion, a certain obliquity of vision, and a large pair of spectacles.1857, George Borrow, The Romany Rye, 2nd edition, London: John Murray, published 1858, Volume 2, Appendix, Chapter 11, p. 359
2. Devious; cunning; misleading; sneaky.
   • With intellect weaselly, artist has easily earned all his bacon and greens by it,
     And now that it’s done and all ready for Fun, it’s my duty to say what he means by it.1864, W. S. Gilbert, “Sixty-Three and Sixty-Four” originally published in Fun, V (2 January 1864), p. 162, later published in Bab Ballads, Cambridge, Massachusetts: Belknap Press of Harvard...