Definition of Utmost

• the greatest possible degree; "he tried his utmost"
• of the greatest possible degree or extent or intensity; "extreme cold"; "extreme caution"; "extreme pleasure"; "utmost contempt"; "to the utmost degree"; "in the uttermost distress"
• highest in extent or degree; "to the last measure of human endurance"; "whether they were accomplices in the last degree or a lesser one was...to be determined individually"