The word "unsolicited" refers to something that is not asked for or requested. It often describes information, feedback, or communication that someone provides without being prompted or invited to do so. For example, you might receive unsolicited advice from a friend about a decision you didn't ask for help with.
The term "unsolicited" comes from the prefix "un-", meaning "not," and the word "solicited," which is derived from the Latin "sollicitare," meaning "to disturb or agitate." In English, "solicit" means to request or seek something, so "unsolicited" directly conveys the idea of something not sought after.