new guy
- rookieInexperienced newcomer
- newbieInexperienced person, informally
- freshmanFirst-year student
- outsiderOne excluded from group
- strangerPerson not yet known
novice · beginner · greenhorn · newcomer · hire · trainee · awkward · nervous · introductions · orientation · unfamiliar · lost · clueless · eager · fresh · initiate · transfer · first day
tenure/experience
new guyveteran
Experienced former soldier
old-timer · old hand · lifer · senior member · founding member
status/hierarchy
new guytop dog
Dominant leader
boss · head honcho · elder statesman · senior partner · big cheese
insider knowledge
new guyinsider
One with confidential access
old guard · company man · institutional memory · part of the furniture · gatekeeper