プログレッシブ和英中辞典(第4版)の解説
ひょっこり
❶〔思いがけず〕unexpectedly
ある日彼がひょっこり訪ねて来た
One day I received [had] an unexpected visit from him.／One day he called on us unexpectedly.
彼は今朝事務所にひょっこり顔を出したよ
He popped in at my office this morning.
❷〔偶然に〕by chance
駅で彼にひょっこり出会った
I 「happened to meet [bumped into/ran into] him at the station.
その本は古本屋でひょっこり見付けたのです
I found the book by chance at a secondhand bookstore.