2. Developing too early; premature. Sir P. Sidney.

UNRIPENESS
Un*ripe"ness, n.

Defn: Quality or state of being unripe.

UNRIVALED
Un*ri"valed, a.

Defn: Having no rival; without a competitor; peerless. [Spelt also unrivalled.] Pope.

UNRIVET
Un*riv"et, v. t. Etym: [1st pref. un- + rivet.]

Defn: To take out, or loose, the rivets of; as, to unrivet boiler plates.

UNROBE
Un*robe", v. t. & i. Etym: [1st pref. un- + robe.]

Defn: To disrobe; to undress; to take off the robes.

UNROLL
Un*roll", v. t. Etym: [1st pref. un- + roll.] [Written also unrol.]