Calvin and Hobbes by Bill Watterson
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tender adj.

Definition: 1. soft or delicate in substance; not hard or tough: a tender steak. 2. weak or delicate in constitution; not strong or hardy. 3. delicate or gentle: the tender touch of her hand. 4. acutely or painfully sensitive.

Example: I have a tender bruise on my knee that hurts when I touch it.

Synonyms: sensitive, painfulĀ