<p><strong>Adjective:</strong></p><ul><li>not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid.</li><li>secure fixed in place.</li><li>not shaking or trembling; steady.</li><li>not likely to change; fixed, settled, unalterable.</li><li>steadfast or unwavering, as persons or principles.</li><li>indicating firmness or determination.</li><li>not fluctuating much or falling, as prices, values, etc.</li></ul><p><strong>Synonyms:</strong></p><ul><li>immovable, stable, fast.</li><li>confirmed.</li><li>reliable, staunch, determined.</li></ul><p><strong>Antonyms:</strong></p><ul><li>soft, yielding.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to make firm; tighten or strengthen.</li><li>to steady or fix.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to become firm or fixed.</li><li>(of prices, markets, etc.) to recover; become stronger, as after a decline.</li></ul><p><strong>Adverb:</strong></p><ul><li>firmly.</li></ul>