Sharp
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of sharp? It's sharp.
Something that is sharp will stab someone, but they will sue you for your rude behaviors. They sue rude (するど) behaviors...
私は森で熊に遭遇し、鋭い爪で顔を引っ掻かれました。
I ran into a bear in the forest and it scratched my face with its sharp claws.