прилагательное бдительный; настороженный, осторожный Синоним(ы): vigilant, cautious
adjective 1. archaic a. not able or accustomed to sleep or rest; wakeful b. causing sleeplessness c. spent in wakefulness; sleepless 2. carefully observant or attentive; being on the watch • watchfully adverb • watchfulness noun Synonyms: watchful, vigilant, wide-awake, alert mean being on the lookout especially for danger or opportunity. watchful is the least explicit term Example: the watchful eye of the department supervisor. vigilant suggests intense, unremitting, wary watchfulness Example: eternally vigilant in the safeguarding of democracy. wide-awake applies to watchfulness for opportunities and developments more often than dangers Example: wide-awake companies latched onto the new technology. alert stresses readiness or promptness in meeting danger or in seizing opportunity Example: alert traders anticipated the stock market's slide.