This is the 5846th most frequent Portuguese word.
bad
The Portuguese word "bad" does not exist; "bad" in English translates to "mau" or "ruim" in Portuguese.
Here, 'ruim' is used to describe undesirable weather conditions, equivalent to 'bad'.
O tempo está ruim hoje.
The weather is bad today.
The word 'má' signifies poor or wrong, used to describe the quality of the decision.
Ele tomou uma decisão má.
He made a bad decision.
'Ruim' again denotes unpleasant or undesirable, here applied to a smell.