The French language generally avoids words starting with "K," as they are considered foreign and often borrowed from other languages like English or German.
If you're looking for adjectives to describe a person, you could use words like:
* Charmant(e) (charming)
* Courageux(se) (courageous)
* Créatif(ve) (creative)
* Cultivé(e) (cultured)
* Comique (funny)
Let me know if you'd like to explore other options!