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unalert

 

Definitions from WordNet

Adjective unalert has 1 sense
  1. unalert - not alert or attentive
    Antonyms:
    alert, argus-eyed, open-eyed, vigilant, wakeful, watchful, fly, heads-up, wide-awake, lidless, sleepless, on the alert, on the job, perched, perked, perked up

Definitions from the Web

unalert

Part of Speech: Adjective

Sense 1: Not alert or attentive; lacking awareness or vigilance.

Example sentence: She missed the deadline because she was unalert to the approaching due date.

Sense 2: Not responsive or reactive; slow to react.

Example sentence: The unalert driver failed to notice the pedestrian crossing the road.

Part of Speech: Verb

Sense: (rare or obsolete) To make someone unalert or less alert.

Example sentence: The monotonous lecture unalerted the students, making it difficult for them to concentrate.

Part of Speech: Noun

Sense: (informal) A person who is not alert or attentive.

Example sentence: The security guard was criticized for being an unalert when the theft occurred.

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