Why is 'I was at my most vulnerable' grammatical?
This is an example from a dictionary:
He took advantage of me when I was at my most vulnerable.

I understand what this sentence means, but I don't know why the clause 'I was at my most vulnerable' is grammatical. Is something left out after the word 'vulnerable'?

Question

Why is 'I was at my most vulnerable' grammatical?
This is an example from a dictionary:
He took advantage of me when I was at my most vulnerable.

I understand what this sentence means, but I don't know why the clause 'I was at my most vulnerable' is grammatical. Is something left out after the word 'vulnerable'?

Answer

It is talking about a point in time.

So He took advantage of me when I was at my most vulnerable (maybe part of thge day or year or after something that he took advantage of me on).