unexpected

Definitions

Not expected or regarded as likely to happen.

Surprising or unforeseen.

Examples

The sudden rainstorm was completely unexpected, leaving everyone without an umbrella.

She received an unexpected phone call from an old friend she hadn't seen in years.

Synonyms

unforeseen abrupt sudden surprising unanticipated unpredicted startling

Antonyms

expected anticipated foreseen predicted planned predictable foreseeable