The superlative of high, adj. (in various senses).

Highest, upmost, uppermost, topmost.

Highest in position, uppermost; outermost, covering all the rest; farthest away. Now Newfoundland and rare.

Most high in situation, position, or rank; uppermost, highest, loftiest; †outermost.

Uppermost, highest; (of clothing, etc.) outermost. Cf. overest, adj.

Highest, loftiest, topmost. Now rare (chiefly poetic in later use).

= uppermost, adj. (in various senses).

Occupying the highest position or place; loftiest, topmost, highest in place; furthest up (on a river, etc.).

= highest, adj. Occasionally also as adv.: = highest, adv. Cf. the more common lowermost, adj. adv. uppermost, adv. adj.n.

Of or pertaining to the top, belonging to the top; situated, placed, or growing at or on the top of something; topmost, upper, uppermost. Now…

Uppermost, highest. Also absol., highest part.

Topmost, highest. Now rare (Scottish in later use).

Reaching the greatest height, forming the summit or highest point, topmost.

(a) highest; (b) best.