understandable

understandable — adjective

1. Describes language, explanations, or instructions that are clear enough for some

1.adjectiveB1
Definition

Describes language, explanations, or instructions that are clear enough for someone to follow without extra effort.

Example

The manual uses simple words to make the setup process understandable for beginners.

pattern: make + something + understandable

Apinya read the contract twice to check that every term was understandable.

Common collocations
  • perfectly understandable
  • easily understandable
  • readily understandable
  • fully understandable
  • make something understandable
  • understandable to someone
  • clear and understandable
  • simple and understandable
Synonyms
  • clear

    the most common alternative; broader — can describe voice, writing, or meaning without the '-able' nuance of effortlessness

  • comprehensible

    more formal and slightly stronger; implies full understanding rather than just basic clarity

  • intelligible

    more technical; used especially for speech, pronunciation, or written records that can be deciphered

  • straightforward

    emphasizes simplicity and lack of complication rather than just being clear

Antonyms
  • incomprehensible

    impossible to understand at all

  • confusing

    causes difficulty or misunderstanding

  • unclear

    not expressed or presented in a way that is easy to understand

Grammar Patterns

be + understandable

make + something + understandable

understandable + to + someone

Usage Note

Often used with intensifying adverbs such as 'perfectly', 'easily', 'readily', or 'fully' to emphasize clarity: 'The directions were perfectly understandable.'

Common Mistakes

His English was understandable for me' (implying 'by' meaning).
His English was understandable to me.
use 'to', not 'for', when specifying who can understand.
Please speak understandable' (using adjective where adverb is needed).
Please speak understandably.
use the adverb form when describing how an action is done.

2. Used about a person's feelings, actions, or reactions that seem natural and reas

2.adjectiveB2
Definition

Used about a person's feelings, actions, or reactions that seem natural and reasonable when you know the situation they are in — for example, being angry after an unfair treatment, or feeling nervous before an important event.

Example

It is understandable that Mira was upset after her bag was stolen on the train.

pattern: it + be + understandable + that-clause

Diego felt nervous before his job interview, which was completely understandable.

collocation: completely understandable

Common collocations
  • completely understandable
  • entirely understandable
  • perfectly understandable
  • understandable reaction
  • understandable concern
  • understandable frustration
  • understandable anger
  • understandable given
  • understandable in the circumstances
Synonyms
  • reasonable

    the closest synonym; focuses on the logic and good sense behind the reaction

  • natural

    emphasizes that most people would have the same reaction; less about logic, more about human instinct

  • expected

    more neutral; suggests the reaction was predictable given the circumstances

  • excusable

    directly addresses blame or fault; used when the behavior might normally be wrong but the situation justifies it

Antonyms

Grammar Patterns

it + be + understandable + that-clause

it + be + understandable + why/when/if

understandable + for + someone + to-infinitive

Usage Note

This sense is almost always used with 'it' as a dummy subject (e.g., 'it is understandable that…') or with a possessive noun showing whose reaction is described ('her anger was understandable'). It is rarely used to describe the person themselves — we say 'her reaction was understandable', not 'she was understandable'.

Common Mistakes

She was understandable when she got angry.
Her anger was understandable given the situation.
this sense describes feelings or reactions, not people.
It is understandable for someone being angry.
It is understandable that someone would be angry.
use a that-clause, not 'for + being'.

Word family

Synonym discussion

Sense: adjective/2

'Understandable' (sense 2) and 'reasonable' are often interchangeable when describing reactions, but 'reasonable' leans more toward logic and sound judgment ('a reasonable request'), while 'understandable' focuses on empathy — you can see why someone felt that way even if you would not react the same. 'Natural' is about human instinct rather than logic; something natural 'just feels right' without needing a reason ('a natural fear of the dark'). 'Expected' is the most neutral — it simply says the reaction was predictable without judging whether it was appropriate ('an expected delay'). 'Excusable' goes further, suggesting the behavior might normally be wrong but the circumstances justify it ('an excusable mistake'). Use 'understandable' when you want to show empathy; use 'reasonable' when you want to show logical agreement; use 'excusable' when you are defending something that could otherwise be seen as a fault.

reasonable ↗natural ↗expected ↗excusable

Common collocations

Nouns

Adverbs

Phrases

  • understandable that
  • understandable why
  • understandable given
  • understandable in the circumstances
  • understandable for someone to

Prepositions

Etymology

Old EnglishMiddle EnglishOld FrenchLatin

Formed by adding the suffix '-able' (meaning 'capable of being') to the verb 'understand', which comes from Old English 'understandan'. The Old English word was made from 'under-' (thought to mean 'among' or 'in the midst of') + 'standan' (to stand), so the original image was 'to stand among' ideas or facts. The suffix '-able' entered English through Old French from the Latin suffix '-abilis', meaning 'able to be done'. The combination 'understandable' first appears in English around the 14th century.