Hello, They look pretty similar to me, but I might be wrong. Can you detect any significant differences between: "His performance was (well) under par" and "His performance was sub-par"? I am not sure if the second sentence's grammatically correct. I see that "sub-par" is usually used before a noun. I have a preference for "under par" and "sub-par" seems to be more common in AE. That's what some dictionaries say.
Thank you.
Top answer
They are both used and mean the same things. Use the one you prefer, for whatever reason you prefer it.
— Englishmaven
They are both used and mean the same things.
Use the one you prefer, for whatever reason you prefer it.
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