<p><strong>Adjective</strong></p><ul><li>apt to take offense on slight provocation; irritable.</li><li>requiring caution, tactfulness, or expert handling; precarious; risky.</li><li>sensitive to touch.</li><li>easily ignited, as tinder.</li></ul><p><strong>Synonyms</strong></p><ul><li>cranky</li><li>snappish</li><li>edgy</li><li>irascible</li><li>testy</li></ul>