unsolicited

Definitions

Not asked for; given or done voluntarily without being requested.

Not sought out or invited by the recipient.

Examples

The company received a barrage of unsolicited emails promoting various software products.

She felt uncomfortable when the stranger offered her unsolicited advice about her personal life.

Synonyms

unasked unrequested voluntary spontaneous uninvited gratuitous optional

Antonyms

solicited requested invited sought required mandatory expected