Main entry: utmost, uttermost, level best, maximum
Definition: the greatest possible degree
Usage: he tried his utmost
Main entry: farthermost, farthest, furthermost, furthest, utmost, uttermost
Definition: (comparatives of `far') most remote in space or time or order
Usage: had traveled to the farthest frontier; don't go beyond the farthermost (or furthermost) tree; explored the furthest reaches of space; the utmost tip of the peninsula
Definition: highest in extent or degree
Usage: to the last measure of human endurance; whether they were accomplices in the last degree or a lesser one was...to be determined individually
Main entry: extreme, utmost, uttermost
Definition: of the greatest possible degree or extent or intensity
Usage: extreme cold; extreme caution; extreme pleasure; utmost contempt; to the utmost degree; in the uttermost distress