忽然

hū rán

suddenly; all of a sudden

HSK 4

Character Breakdown

Usage of 忽然

The adverb 忽然 is used to describe an action or event that happens suddenly and unexpectedly. It often appears at the beginning or middle of a sentence to emphasize the abruptness of the change.

Common Collocations

These collocations highlight sudden changes in situation or thought.

Nuance and Register

忽然 carries a neutral tone and is suitable for both spoken and written Mandarin. It is more formal than some colloquial alternatives like 突然 but can be used interchangeably in many contexts.

Avoiding Confusion

Do not confuse 忽然 with 突然; both mean 'suddenly,' but 忽然 often emphasizes a more abrupt or unexpected change, sometimes with a literary or dramatic tone. 突然 is more common in everyday speech.

Example Sentences

他忽然站起来,大家都很惊讶。

Tā hūrán zhàn qǐlái, dàjiā dōu hěn jīngyà.

He suddenly stood up, and everyone was very surprised.

忽然下起了大雨,我们赶紧找地方避雨。

Hūrán xià qǐle dàyǔ, wǒmen gǎnjǐn zhǎo dìfāng bì yǔ.

Suddenly it started raining heavily, so we quickly looked for shelter.

他忽然意识到自己忘了带钥匙。

Tā hūrán yìshí dào zìjǐ wàngle dài yàoshi.

He suddenly realized he forgot to bring the keys.