watchful

adjective
UK: /ˈwɒtʃ.fəl/
US: /ˈwɑːtʃ.fəl/

  1. Carefully noticing what is happening so that you will notice if anything goes wrong

    1. Be watchful when you cross the road.
    2. The border guards must remain watchful for any attempts to cross the border illegally.

Synonyms

alert observant attentive cautious vigilant

Frequently Asked Questions

The phonetic transcription of "watchful" is /ˈwɒtʃ.fəl/ in British English and /ˈwɑːtʃ.fəl/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "watchful": alert, observant, attentive, cautious, vigilant.

Example usage of "watchful": "Be watchful when you cross the road.". More examples on the page.