Synonyms of alertness in English:

alertness


See definition of alertness

noun

1‘he had the supernatural alertness of the hunted’

SYNONYMS

vigilance, awareness, watchfulness, attentiveness, attention, circumspection, wariness, chariness, heedfulness, canniness, discretion, prudence

ANTONYMS

inattentiveness

2‘work is unquestionably one of the most important factors in preserving mental alertness and bodily health’

SYNONYMS

quick-wittedness, quick thinking, quickness of mind, sharpness, quickness, keenness, perceptiveness, responsiveness, agility, acuteness, acuity, shrewdness, astuteness, intelligence, insight, presence of mind

ANTONYMS

slowness