+++Tatiana: -or- You look a hot mess.

Elena and Grumbler, both your translations correspond to “you look sick” - is this statement that severe?

Uly, yes, неважно means almost sick or when people are upset or exhausted. I think "hot" means sexy, it doesn't fit here.
- Ты сегодня неважно выглядишь. Ты не заболела?
- Босс сегодня неважно выглядит. Не знаешь, что с ним?

You don’t look too/so hot today - you’re not coming down with something, are you?

In the boss snippet, I don’t know if you mean upset or sick.

If a person looks bad and others think it may be because he's ill or exhausted

We can also say "неважнецки"

You're not coming down with something 👍

That’s a good expression))) Very natural 👍🏼

Yeah)). So, unwell and not well also fit?

Absolutely, now that I understand the meaning. Thank you)))

+++Grumbler

+++Uly

+++Tatiana

++Elena

+++ Uly
Правильно - сам себя не похвалишь, никто не похвалит))

What about to look a mess? Does it mean выглядеть неряшливым, грязным, неопрятным?

It can also mean sick or upset and it’s very popular.

I only ranked myself to show the most natural translations. Funny enough, Ngram agrees with me))) https://books.google.com/ngrams/graph?content=you+don%27t+look+well%2Cyou+look+unwell%2Cyou+look+a+mess%2C+don%27t+look+too+hot&year_start=1800&year_end=2000&corpus=15&smoothing=3&share=&direct_url=t1%3B%2Cyou%20do%20not%20look%20well%3B%2Cc0%3B.t1%3B%2Cyou%20look%20unwell%3B%2Cc0%3B.t1%3B%2Cyou%20look%20a%20mess%3B%2Cc0%3B.t1%3B%2Cdo%20not%20look%20too%20hot%3B%2Cc0

I trust you! I just wrote what we say when we praise ourselves while others are silent. It's also very popular)))

Coolness - I’ll note it!

If you don’t blow your own horn no one will do it for you.

👍Здорово!

😉

¿So is this the same as saying Ты выглядишь больным.

Ты неважно выглядишь basically means that someone looks worse than they usually do. They can be sick or upset or whatever.

👌🏼 not too hot

👍