To be confused about something or to feel unsure about what to do.
“I am lost at sea with this new system at work. I just can’t understand it.”
Frequently Asked Questions (FAQs)
The idiom ‘Lost at sea’ means “to deal with a difficult situation without being harmed or damaged”
Example usage of idiom ‘Lost at sea’: Newspapers have weathered the storm of online information by providing news online themselves.