<p><strong>Adverb</strong></p><ul><li>cavalierly, curtly, or brusquely: to reply offhand.</li><li>Synonyms: abruptly, shortly, short</li><li>without previous thought or preparation; extempore: to decide offhand to take a trip.</li></ul><p><strong>Adjective</strong></p><ul><li>informal, casual, curt, or brusque: an offhand manner.</li><li>Synonyms: extempore, impromptu</li><li>Also offhanded.</li><li>done or made offhand.</li><li>Synonyms: extempore, impromptu</li><li>Antonyms: considered</li><li>Glassmaking: working manually and without the use of molds: offhand blowing.</li></ul>