shiftiest

Adjective

shifty (comparative shiftier, superlative shiftiest)

1. Subject to frequent changes in direction.
   • Off he raced, shuffling his bare feet through the hot, dry, shifty sand.1929, Henry Handel Richardson, Ultima Thule, New York: Norton, Part 2, Chapter 3, p. 145
2. Moving from one object to another; not looking directly and steadily at the person with whom one is speaking.
   • […] his quick, shifty eyes turned from the manager to the lethal weapons over the chimney, then to the safe, then to the bank, and Mr. Thickens’s back.1886, George Manville Fenn, This Man’s Wife, Chapter 3, in Littel’s Living Age, Volume 168, No. 2178, 20 March, 1886, p. 761
3. (idiomatic, informal) Having the appearance of being dishonest, criminal, or unreliable.
   • He was a shifty character in a seedy bar, and I checked my wallet was still there after talking to him.
4. Resourceful; full of, or ready with, shifts or expedients.
   • Shifty and thrifty as old Greek or modern Scot, there were few things he could not invent, and perhaps nothing he could not endure.1857, Charles Kingsley, chapter 1, in Two Years Ago, volume 1, Cambridge: Macmillan, page 34