English

Adjective

out of one's depth

1. (idiomatic) To be in a situation which one is poorly prepared or unprepared to handle.

   The team's first game was against the league champions; they were out of their depth and knew it.

2. (literally) To be in water so deep that one cannot stand and may be at risk of drowning. ^[1]

Synonyms

• out of one's league

References

1. ↑ http://www.yourdictionary.com/idioms/out-of-one-s-depth