This is the 5th most frequent Finnish word.
mutta
"But"
Here, 'mutta' introduces a contrast between the offer made and the speaker's choice.
Minulle tarjottiin kahvia, mutta join mieluummin teetä.
I was offered coffee, but I preferred to drink tea.
In this example, 'mutta' is used to contrast two characteristics of a person.
Hän on miellyttävä, mutta hieman ujo.
He is pleasant, but slightly shy.
In this sentence, 'mutta' is used as a conjunction to contrast the speaker's intention with the weather condition.