Prickly (adjective)

Having or covered with sharp, stiff, and painful protuberances; or having a tendency to cause discomfort or irritation.

Origin:

From the old english priccian (to prick), from the proto-germanic *prukjan (to prick). first recorded in english in the 14th century.

Examples:

1. The cactus is a prickly plant.
2. The hedgehog's back is covered in prickly quills.
3. The shirt made of prickly wool was itchy and uncomfortable to wear.
4. The conversation was prickly, with both people getting defensive and argumentative.
5. He had a prickly personality and was hard to get along with.