Is oh, significantly worse a complete sentence?

Question

...

Answer 1

Oh, significantly worse,

This shortened form is a perfectly acceptable informal answer to the verbal inquiry, "So, Abdulrahman, how are you feeling this morning? You didn't sound great last night." As others have pointed out, however, it doesn't pass the test for formal writing, such as in Academic English or in a business or legal memo. In those contexts, you would need to be sure your sentences contained a subject and a verb. English conversational forms can be shortened, with the context being very important to the meaning and you could use such forms if you were writing a dialogue in a play or radio script.

Hope this helps.

Answer 2

This would be ok for conversational dialog assuming the other person knows what you are describing. However, as Sarah B. mentioned, the sentence still needs a subject and a verb to be 'formally' accurate. You could simply put, "Oh, it is significantly worse". Again though, if something else was mentioned just previously, be more specific about the subject for clarification.

Answer 3

Oh, significantly worse.

This could most definitely be a sentence if it is used after another complete sentence-- complete sentence meaning with a subject and a verb. I'd recommend using this in a more informal setting like an impassioned email exchange or plea. I would not use this in a formal piece of academic writing, specifically if this would be my first submission to the particular reader.

Short sentences vary things up for the reader and help establish tone! Academic writing is just quite particular.