IPA: /ˈʃɪftiɪst/
KK: /ˈʃɪftiɪst/
The most untrustworthy or deceitful; someone who is likely to change their opinions or behavior in a sneaky way.
He was known as the shiftiest character in the town, always changing his story to avoid trouble.
Comparative: shiftier
Superlative: shiftiest
Shiftiest → It is formed from "shift" (from Old English *sciftan*, meaning to cause to move or change) and the suffix "-iest" (meaning most). The word "shiftiest" means the most capable of shifting or changing.
Think of the word 'shift' which means to change, and remember that 'shiftiest' describes something that is the most changeable.