<p><strong>Adjective:</strong></p><ul><li>unable to sleep; not sleeping; indisposed to sleep: Excitement made the children wakeful.</li><li>characterized by absence of sleep: a wakeful night.</li><li>watchful; alert; vigilant: a wakeful foe.</li></ul><p><strong>Synonyms:</strong></p><ul><li>restless</li><li>insomniac</li><li>awake</li><li>sleepless</li><li>observant</li><li>wary</li></ul><p><strong>Antonyms:</strong></p><ul><li>sleeping</li><li>asleep</li><li>sleepful</li></ul><p><strong>End of Response</strong></p>