Maximum

[Sarah]

The greatest quantity or value attainable in a given case; or,the greatest value attained by a quantity which first increases andthen begins to decrease; the highest point or degree; -- opposed toAnt: minimum.Good legislation is the art of conducting a nation to the maximum ofhappiness, and the minimum of misery. P. Colquhoun.Maximum thermometer, a thermometer that registers the highest degreeof temperature attained in a given time, or since its lastadjustment.

[Sarah]

The ultimate, the best ever. The shit. Synonym for boss, awesome, legit, cool, perfect.

[Sarah]

highest

usually used as an amount, constraint or measure of capacity

synonym: most; climax; optimum; full; top; limit

[Dianne]

As great, high, or intense as possible or permitted.

[GarryDrold]

being the largest amount or number allowed or possible: