| Vigilance 1. (n.) Watchfulness in respect of danger; care; caution; circumspection. 2. (n.) The quality or state of being vigilant; forbearance of sleep; wakefulness. 3. (n.) Guard; watch. Thesaurus Entries alertness, attentiveness, caution, circumspection, custodianship, custody, eagle eye, guard, guardedness, guardianship, invigilation, lookout, monitoring, observance, peeled eye, proctoring, prudence, qui vive, sharp eye, stewardship, surveillance, tout, vigil, wariness, watch, watch and ward, watchful eye, watchfulness, watching, weather eye |