unhoped-for

From un- +‎ hoped for.

unhoped-for (comparative more unhoped-for, superlative most unhoped-for)

1. Not expected or imagined.

• “unhoped-for”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “unhoped-for” in Longman Dictionary of Contemporary English, Longman.