Alert and Careless

Opposite meaning words

Alert adjective - Paying close attention usually for the purpose of anticipating approaching danger or opportunity.

Usage example: she needed to stay alert throughout the train ride so as not to miss her stop

Show all Definitions

Careless is an antonym for alert in attentive topic.

Nearby Words: alertness, alerted, alerting, alerter

Careless adjective - Not paying or showing close attention especially for the purpose of avoiding trouble.

Usage example: a careless mistake that caused the plane to crash

Show all Definitions

Alert is an antonym for careless in slapdash topic.

Nearby Words: care, careful, carelessly, carelessness

Cite this Source

Careless and Alert. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/alert/careless

Alert & Careless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/alert/careless>.

Careless or Alert. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/alert/careless.

Google Ngram Viewer shows how "alert" and "careless" have occurred on timeline