unexpected

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

not expected or anticipated (Freq. 7)
- unexpected guests
- unexpected news
• Ant:
expected
• Similar to:
unannounced, unheralded, unpredicted, unanticipated, unforeseen,
unlooked-for, out of the blue, unhoped, unhoped-for, unthought, unthought-of,
unprovided for, upset
• See Also:
surprising
• Derivationally related forms:
unexpectedness