Mad vs Pissed off

When to use each in English, with meaning, register, and examples.

Mad

Informal Top 2,000 (common) B1 adjective

Pissed off

Informal Top 2,000 (common)

	Mad	Pissed off
Pronunciation	🇬🇧 /["/mæd/"]/ 🇺🇸 /["/mæd/"]/	🇬🇧 //pɪst ɒf// 🇺🇸 //pɪst ɔf//
Meaning	angry or upset	Very angry or annoyed.
Example	I was so mad when I found out someone had used my laptop without asking.	I was really pissed off when I found out they canceled the meeting.
Register	Informal	Informal
How common	Top 2,000 (common)	Top 2,000 (common)
CEFR level	B1	-
Part of speech	adjective
Collocations	be, look, seem, absolutely, completely, quite, with, be, look, seem, absolutely, completely, quite, with, be, feel, look, extremely, fairly, very, at, with	get pissed off, pissed off at someone, pissed off about something
Antonyms	happy, calm, pleased	-
Common mistakes	Using 'mad' in formal writing., Mixing up 'mad' with 'crazy'—they have different meanings., Saying 'mad of' instead of 'mad at'.	Used in formal situations instead of informal ones., Confused with 'peeved off', which is less intense.
Usage notes	It's commonly used in casual conversations to express anger. Avoid using it in formal situations, as it may be seen as childish.	Commonly used in casual conversation. Avoid in formal contexts or professional settings due to its vulgarity.

Frequently asked questions: Mad vs Pissed off

What's the difference between Mad and Pissed off?

Mad: angry or upset Pissed off: Very angry or annoyed.

Can you show an example of each?

Mad: I was so mad when I found out someone had used my laptop without asking. Pissed off: I was really pissed off when I found out they canceled the meeting.

Can I use Mad and Pissed off interchangeably?

Not always. Mad and Pissed off are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.