He was all at sea when he began his new job. What does the idiom/phrase "at sea" mean?

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He was all at sea when he began his new job. What does the idiom/phrase "at sea" mean? Answer: Puzzle

The idiom "at sea" means confused, perplexed, and unsure of what to do. The phrase "He was all at sea when he began his new job" means he was completely confused and didn't know how to proceed.

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.