Predictable vs Reliable

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

Predictable

Top 2,000 (common)B2adjective

Reliable

Top 1,000 (very common)B1adjective
Most common: Reliable
 PredictableReliable
Pronunciation🇬🇧 /["/prɪˈdɪktəbl/"]/🇺🇸 /["/prɪˈdɪktəbl/"]/🇬🇧 /["/rɪˈlaɪəbl/"]/🇺🇸 /["/rɪˈlaɪəbl/"]/
MeaningSomething that can be expected or guessed easily.Someone or something you can trust to work well or be true.
ExampleThe movie’s ending was so predictable that I guessed it within the first ten minutes.You can always count on her; she is very reliable.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2B1
Part of speechadjectiveadjective
Collocationsbe, seem, become, extremely, fairly, very, from, be, seem, become, extremely, fairly, very, frombe, prove, seem, extremely, fairly, very, as, be, prove, seem, extremely, fairly, very, as
Antonymsunpredictable, surprising, unexpectedunreliable, inconsistent, untrustworthy
Common mistakesConfused with 'predicted' - remember 'predictable' describes the nature of something., Using 'predictable' for unexpected events., Mispronouncing the second syllable as 'table' instead of 'ta-bul'.Using 'reliable' with a subject that can't be trusted., Confusing 'reliable' with 'reliant' which has a different meaning., Using 'reliable' to mean 'accurate' which is not the same.
Usage notesUse 'predictable' when describing events, behaviors, or outcomes that are easy to foresee. Avoid in highly formal contexts.Use 'reliable' in contexts where you want to express trustworthiness. It's suitable for both formal and informal settings, but avoid it in overly casual speech.

Frequently asked questions: Predictable vs Reliable

What's the difference between Predictable and Reliable?

Predictable: Something that can be expected or guessed easily. Reliable: Someone or something you can trust to work well or be true.

Which is more common: Predictable and Reliable?

Reliable is the most common in everyday English.

Which is more advanced: Predictable and Reliable?

Predictable is the highest level, at B2, on the CEFR scale.

Are Predictable and Reliable the same CEFR level?

Predictable: B2, Reliable: B1 on the CEFR scale.

What part of speech are Predictable and Reliable?

Predictable: adjective, Reliable: adjective.

Can you show an example of each?

Predictable: The movie’s ending was so predictable that I guessed it within the first ten minutes. Reliable: You can always count on her; she is very reliable.

Can I use Predictable and Reliable interchangeably?

Not always. Predictable and Reliable 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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