QUESTION - I’ve seen quite a few sentences on CM whereby the adjective is declinated according to noun case, even though the adjective is not accompanied by a noun and the adjective does not follow a preposition. I’d always thought that a ‘stand alone’ adjective in a sentence (no noun pairing and no preposition beforehand) does not become declinated, except by gender. Are there exceptions to this? Thanks!
English Translation
To be always honest is not easy.
I have always asked myself this question as well, but as I have been learning polish through the last years I’ve come to the conclusion that the adjective is usually declined into the instrumental case when the adjective refers to a subject that is not mentioned but is implied. In this I assume it would be something like “uczciwym (człowiekiem)”
Am I wrong in asssuming this? Any other takes more than welcome!
Yes that’s pretty much it 
The subject (“człowiekiem”) is implied here, so we use the instrumental form of the adjective, because “człowiekiem” would also need to be in the instrumental in this context.