Unwelcome means not wanted here. An unwelcome guest, unwelcome news, made to feel unwelcome.
It covers people, news and attention. Unwelcome attention is the standard formula in complaints and in policy about harassment, and it is deliberately about the recipient's experience rather than the intention. Made to feel unwelcome is a serious phrase in that context. Note that unwelcome is Middle English and unchanged, built from welcome, which is literally a well-comer.
1adjectiveunwelcomeNot wanted here.
“The neighbours made it clear that we were unwelcome at their party.”
unwelcome is a quality of being unwanted.
Middle English unwelcome is un- plus welcome, and welcome itself is from Old English wilcuma, a pleasing guest — literally a wished-for comer.
Middle English
unwelcome
English, today
unwelcome
From Middle English unwelcome, unwelcum; equivalent to un- + welcome.
Etymology from Wiktionary, CC BY-SA