"Our house is pretty" doesn't match?
What case is piȩkny in?
It's simply Nominative.
Could this be used the same way as ślicznie
"ślicznie" is an adverb, and the adjective "śliczny" is not strong enough for "beautiful".
Is 'our home is beautiful' no good?
It should have worked, as it's an accepted answer.
It is problem because our must br with '' are''
"Our house" is undoubtedly singular. "Our house is".
Is attractive beautiful? I wonder what Socrates would ask about this.