English adjective: heads-up | |||
1. | heads-up fully alert and watchful | ||
Samples | Played heads-up ball. | ||
Synonyms | wide-awake | ||
Similar | alert, watchful | ||
Antonyms | unalert, unvigilant, unwatchful | ||
English noun: heads-up | |||
1. | heads-up (communication) a warning message | ||
Samples | He sent a heads-up to the District Attorney. | ||
Broader (hypernym) | warning | ||