- on-the-job - relating to or associated with a job or employment; "on-the-job training"; "on-the-job requirements"
Antonym: unemployed (indirect, via employed)
- on the alert, on the job - watchful and prepared for action; "bird watchers on the alert for a rare species"; "cops were on the job and caught them red-handed"
Antonym: unalert (indirect, via alert)