IPA: /ˈwɒtʃfəl.nəs/
KK: /ˈwɑtʃfələs/
The state of being alert and attentive, especially to avoid danger or problems.
The guard maintained a high level of watchfulness throughout the night.
Watchfulness → It is formed from "watch" (from Old English *wæccan*, meaning to be awake or to guard) and "-fulness" (meaning the state of being full of). The word "watchfulness" means the state of being full of alertness or vigilance.
Think of being 'full of' alertness — 'watch' means to guard or be awake, and '-fulness' indicates a state of being. This helps you remember that watchfulness refers to being very alert and vigilant.