Cool MateAcceptable vs Adequate vs Fair vs Reasonable
When to use each in English, with meaning, register, and examples.
Acceptable
Adequate
Fair
Reasonable
| Acceptable | Adequate | Fair | Reasonable | |
|---|---|---|---|---|
| Pronunciation | 🇬🇧 /["/əkˈseptəbl/"]/🇺🇸 /["/əkˈseptəbl/"]/ | 🇬🇧 //ˈædɪkwət//🇺🇸 //ˈædɪkwɪt// | 🇬🇧 /["/feə(r)/"]/🇺🇸 /["/fer/"]/ | 🇬🇧 /["/ˈriːznəbl/"]/🇺🇸 /["/ˈriːznəbl/"]/ |
| Meaning | Okay or good enough to be used. | Good enough for what is needed. | Treating everyone equally and justly. | Fair and sensible; not extreme. |
| Example | The noise level in the library is not acceptable for studying. | The food was adequate, but I expected something better. | The decision was fair and just for everyone involved. | It is reasonable to assume that the meeting will start on time. |
| Register | Neutral | Neutral | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | B2 | B2 | A2 | B2 |
| Part of speech | adjective | adjective | adjective | adjective |
| Collocations | be, prove, seem, highly, very, completely, to, the boundaries of acceptable…, the bounds of acceptable…, the limits of acceptable…, be, prove, seem, highly, very, completely, to, the boundaries of acceptable…, the bounds of acceptable…, the limits of acceptable… | adequate resources, adequate solution, adequate response | be, seem, make something, scrupulously, very, absolutely, to be fair, to, be, seem, make something, scrupulously, very, absolutely, to be fair, to | appear, be, look, extremely, fairly, very, appear, be, look, extremely, fairly, very, appear, be, look, extremely, fairly, very |
| Antonyms | unacceptable, unsatisfactory, poor | inadequate, insufficient | unfair, biased, inequitable | unreasonable, irrational, excessive |
| Common mistakes | Confused with 'acceptable' vs 'accepted'., Using 'acceptable' as a noun incorrectly., Overusing 'acceptable' in contexts that require stronger words like 'excellent' or 'outstanding'. | Confused with 'sufficient' - 'adequate' implies minimum quality, while 'sufficient' means enough in quantity., Using 'adequate' too casually, as it is more formal., Mispronouncing it, especially in unstressed syllables. | Confused with 'fare', which refers to the cost of a ticket., Using 'fair' when meaning 'light-skinned', instead of using 'fair-skinned'. | Confused with 'rational' which is more about logic than fairness., Using 'reasonable' to describe an extreme opinion or action., Incorrectly spelling it as 'resonable'. |
| Usage notes | Used in both spoken and written contexts to indicate something that meets necessary standards. It can be formal in academic contexts and more casual in everyday conversations. Avoid in circumstances that require high standards or exceptional quality. | Use 'adequate' when something meets the necessary requirements, but is not exceptional. It's often used in formal contexts, like reports or evaluations. | Use 'fair' to describe situations or actions that are just and equitable. It's appropriate in most contexts including discussions about justice, games, and competitions. Avoid using it in overly formal or legal contexts where 'equitable' might be better. | Typically used to describe actions, opinions, or decisions that are logical. Avoid in overly emotional contexts or when discussing extreme views. |
Frequently asked questions: Acceptable vs Adequate vs Fair vs Reasonable
What's the difference between Acceptable, Adequate, Fair, and Reasonable?
Acceptable: Okay or good enough to be used. Adequate: Good enough for what is needed. Fair: Treating everyone equally and justly. Reasonable: Fair and sensible; not extreme.
Which is more common: Acceptable, Adequate, Fair, and Reasonable?
Fair is the most common in everyday English.
Are Acceptable, Adequate, Fair, and Reasonable the same CEFR level?
Acceptable: B2, Adequate: B2, Fair: A2, Reasonable: B2 on the CEFR scale.
What part of speech are Acceptable, Adequate, Fair, and Reasonable?
Acceptable: adjective, Adequate: adjective, Fair: adjective, Reasonable: adjective.
Can you show an example of each?
Acceptable: The noise level in the library is not acceptable for studying. Adequate: The food was adequate, but I expected something better. Fair: The decision was fair and just for everyone involved. Reasonable: It is reasonable to assume that the meeting will start on time.
Can I use Acceptable, Adequate, Fair, and Reasonable interchangeably?
Not always. Acceptable, Adequate, Fair, and Reasonable 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.