How to Say "Oh No" in Italian

oh no

/ˈo ˈnɔ/word by word

The English phrase "oh no" is translated into Italian as oh no.

In Italian, oh no is used exactly like in English to express alarm, dismay or realization of a mistake.

Meaning: exclamation of alarm (intj)

Which one should you use?

While oh no is an exclamation of alarm, the word no on its own is primarily used as a direct negation.

/ˈo ˈnɔ/

If an Italian wants to express an even stronger sense of 'oh no' regarding a situation, they might use Ma dai!, which is an exclamation of disbelief.
In very informal settings, instead of 'oh no', you might hear Italians use 'Mannaggia!', a common colorful exclamation used when something goes wrong.
In moments of high alarm, Italians may replace oh no with oddio, which literally means 'oh God' but is used by many as a secular exclamation.

Oh no, è ancora lei.
Oh no, it's her again.
This sentence shows how to use oh no when expressing dismay about a person's presence.
Tatoeba #7265421 by Guybrush88, translation #4381906 by Hybrid
Oh no, è venerdì tredici!
Oh no, it's Friday the thirteenth!
This sentence shows how to use oh no when reacting to an unlucky date.
Tatoeba #2738338 by Guybrush88, translation #2738327 by Hybrid
Oh no! La mia casa va a fuoco!
Oh, no! My house is on fire!
This sentence shows how to use oh no during an emergency.
Tatoeba #1948076 by Guybrush88, translation #36130 by CM
Accidenti! Ho dimenticato il mio portafoglio a casa.
Oh no! I forgot my wallet at home.
Mannaggia! Ho perso l'autobus per l'ennesima volta.
Oh no! I missed the bus once again.
Accidenti a me! Ho dimenticato il compleanno del mio migliore amico.
Oh no! I forgot my best friend's birthday.
13 more sentences on Tatoeba

Matteo and Sofia are looking at a spilled glass of wine on a white rug.

Sources

IPA marked “word by word” joins the Wiktionary pronunciations of each word (oh, no) and can differ in connected speech.
Example sentences: Tatoeba CC BY 2.0 FR.

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