at the utmost point, edge, or border; outermost; utmost; farthest; most remote; at the widest limit.-last; final; conclusive; -- said of time; as, the extreme hour of life.-the best of worst; most urgent; greatest; highest; immoderate; excessive; most violent; as, an extreme case; extreme folly.-radical; ultra; as, extreme opinions.-extended or contracted as much as possible; -- said of intervals; as, an extreme sharp second; an extreme flat forth.-the utmost point or verge; that part which terminates a body; extremity.-utmost limit or degree that is supposable or tolerable; hence, furthest degree; any undue departure from the mean; -- often in the plural: things at an extreme distance from each other, the most widely different states, etc.; as, extremes of heat and cold, of virtue and vice; extremes meet.-an extreme state or condition; hence, calamity, danger, distress, etc.-either of the extreme terms of a syllogism, the middle term being interposed between them.-the first or the last term of a proportion or series.