Englishwarily
adverb
1 he walked towards it, treading warily to avoid the puddles:
carefully, with care, cautiously, gingerly, circumspectly, charily, guardedly, on one's guard, on the alert, on the lookout, on the qui vive, attentively, heedfully, watchfully, vigilantly, observantly, alertly, cannily;
hesitantly, timidly, timorously.
▷antonyms recklessly.
warily Oxford Dictionary of English