(transitive) To break the seal of (something) in order to open it. / (intransitive) To open by having a seal broken.

plural of unsaturated fat

To which salt has not been added. / (cryptography) Without a cryptographic salt.

Not scripted; without a script. / (by extension) Unplanned, unexpected, spontaneous.

Not shaken.

past participle of unshake

Not shorn.

Not skillful.

(British spelling) Alternative spelling of unsavory

Not in accordance with the season.