Webster's Revised Unabridged Dictionary · 1913

Unseason

Unseason , transitive verb

[1st pref. un- + season.]

1.
To make unseasoned; to deprive of seasoning.
2.
To strike unseasonably; to affect disagreeably or unfavorably. [Obsolete]
Why do I send this rustic madrigal, That may thy tuneful ear unseason quite? — Spenser