unwariest

/ʌnˈwɛriɪst/
adjective
  1. The least cautious or alert; most likely to be caught off guard.
    • In the game of chess, the unwariest player usually loses their queen first.
    • He was the unwariest driver in the group, always forgetting to check his mirrors.
    • The unwariest tourists are the ones who fall for street scams.
Antonyms
What does "unwariest" mean? | whatsthatwordmean | whatsthatwordmean