warily

wary +‎ -ly

warily (comparative more warily, superlative most warily)

1. in a wary manner:
   1. using caution; cautiously.
      • 1912: Edgar Rice Burroughs, Tarzan of the Apes, Chapter 6

        That her little Tarzan could destroy a great bull gorilla she knew to be improbable, and so, as she neared the spot from which the sounds of the struggle had come, she moved more warily and at last slowly and with extreme caution she traversed the lowest branches, peering eagerly into the moon- splashed blackness for a sign of the combatants.

   2. without trust; in a manner showing a lack of trust; suspiciously.
      • 2017 January 14, “Thailand's new king rejects the army's proposed constitution”, in The Economist‎:

        The new king is viewed warily by Bangkok's elites, who have sometimes worried that he sympathises with populist politicians whom the army has twice kicked from power.