<p><strong>Adjective</strong></p><ul><li>not easily excited to action or display of emotion; apathetic; sluggish.</li><li>Synonyms: torpid, dull, uninterested, cold, cool, stoical.</li><li>self-possessed, calm, or composed.</li><li>Synonyms: quiet, placid, unruffled, collected, cool.</li><li>of the nature of or abounding in the humor phlegm.</li></ul>