Paranoid vs Suspicious

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

Paranoid

Top 2,000 (common)

Suspicious

Top 2,000 (common)C1adjective
 ParanoidSuspicious
Pronunciation🇬🇧 //ˈpær.ən.ɔɪd//🇺🇸 //ˈpɛr.ə.nɔɪd//🇬🇧 /["/səˈspɪʃəs/"]/🇺🇸 /["/səˈspɪʃəs/"]/
MeaningFeeling very worried or afraid about something that may happen.Thinking something is wrong or that someone might be dishonest.
ExampleAfter the incident, he became increasingly paranoid about his safety.The security guard gave a suspicious look to the man lurking near the entrance.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR level-C1
Part of speechadjective
Collocationsparanoid thoughts, paranoid behavior, paranoid delusions, feeling paranoid, become paranoidbe, feel, look, extremely, fairly, very, about, of, be right to be suspicious (of somebody/​something), have reason to be suspicious (of somebody/​something), have a right to be suspicious (of somebody/​something), be, look, seem, extremely, fairly, very, hear anything suspicious, see anything suspicious, be, feel, look, extremely, fairly, very, about, of, be right to be suspicious (of somebody/​something), have reason to be suspicious (of somebody/​something), have a right to be suspicious (of somebody/​something)
Antonymstrusting, calm, confidenttrusting, naive, gullible
Common mistakesConfusing paranoid with just feeling anxious or worried., Using paranoid to describe normal caution instead of excessive suspicion., Saying 'paranoia' when they mean 'paranoid' incorrectly.Confusing 'suspicious' with 'suspenseful' — they have different meanings., Using 'suspicious' as a noun without proper context., Incorrectly saying 'suspicious about' instead of 'suspicious of'.
Usage notesUsed to describe someone who feels excessively anxious or suspicious. More informal contexts may describe mild worry, while formal uses typically refer to serious conditions.Use 'suspicious' when describing feelings or behaviors that indicate doubt or mistrust. It's appropriate in both written and spoken contexts but may seem overly formal in casual conversations.

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Paranoid

Frequently asked questions: Paranoid vs Suspicious

What's the difference between Paranoid and Suspicious?

Paranoid: Feeling very worried or afraid about something that may happen. Suspicious: Thinking something is wrong or that someone might be dishonest.

Can you show an example of each?

Paranoid: After the incident, he became increasingly paranoid about his safety. Suspicious: The security guard gave a suspicious look to the man lurking near the entrance.

Can I use Paranoid and Suspicious interchangeably?

Not always. Paranoid and Suspicious 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.

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