generated at
surprise

point コーパス shocksurprise
shock: 予想外の悪い事が起こったことを表す. 日本語の「ショック」に比べ, かなり強い感情を表す語なので, 用いる際には注意が必要
surprise: 予想外の事が起こったという状況で用いられるが, 必ずしも悪い事であるとは限らない

point SURPRISE, ASTONISH, ASTOUND, AMAZE, FLABBERGAST mean to impress forcibly through unexpectedness.
SURPRISE stresses causing an effect through being unexpected but not necessarily unusual or novel.
e.g. surprised to find them at home
ASTONISH implies surprising so greatly as to seem incredible.
e.g. a discovery that astonished the world
ASTOUND stresses the shock of astonishment.
e.g. too astounded to respond
AMAZE suggests an effect of bewilderment.
e.g. amazed by the immense size of the place
FLABBERGAST may suggest thorough astonishment and bewilderment or dismay.
e.g. flabbergasted by his angry refusal

point SURPRISE, ASTONISH, and AMAZE mean to impress forcibly by being unexpected, startling, or unusual.
SURPRISE is used when something is unexpected even though it by itself is not startling.
e.g. A sudden storm surprised the hikers.
ASTONISH means to surprise very much with something that is hard or impossible to believe.
e.g. The first airplanes astonished people.
AMAZE is used when something causes a person to wonder and puzzle over it.
e.g. The magician amazed the children.

noun
【人にとっての】思いがけない出来事, びっくりさせる事[物] «to, for»
e.g. the announcement was a complete surprise.
a feeling of mild astonishment or shock caused by something unexpected:
驚き; «…に» 驚く[びっくりする]こと «at»
e.g. much to her surprise, she'd missed him.
as modifier denoting something made, done, or happening unexpectedly:
〖形容詞的に〗不意の, 予告なしの, 突然の
2. as modifier Bell-ringing denoting a class of complex methods of change-ringing:
e.g. surprise major.

verb with object
(of something unexpected) cause (someone) to feel mild astonishment or shock:
〈物・事・人が〉〈人〉を驚かす, びっくりさせる(→ amaze); 〖it surprises A that節/wh節/to do〗 …ということに[…かということに, …して]A〈人〉が驚かされる; 〖~ oneself〗 «…して» 驚く «to do» ; 〖~ A into B〗 A〈人〉を驚かせてB〈状態など〉にさせる
e.g. I was surprised at his statement
e.g. with object and clause : Joe was surprised that he enjoyed the journey
e.g. with infinitive : she was surprised to learn that he was forty.
〈敵など〉を不意打ちする, 奇襲する; 〖~ A doing〗 A〈犯人などが〉…しているところを不意をついて捕まえる
e.g. he surprised a gang stealing scrap metal.

PHRASES
said when giving someone a surprise:
e.g. a voice called out “Surprise, surprise!” and all the lights suddenly flashed on.
said ironically when one believes that something was entirely predictable:
e.g. we entrust you with Jason's care and, surprise surprise, you make a mess of it.

attack or capture someone or something unexpectedly:
e.g. his flotilla was taken wholly by surprise when fired on by the British warships.
(take someone by surprise) happen when someone is not prepared or is expecting something different:
e.g. the question took David by surprise.

ORIGIN
late Middle English (in the sense ‘unexpected seizure of a place, or attack on troops’): from Old French, feminine past participle of surprendre, from medieval Latin superprehendereseize’.