clearly

clearly — adverb

1. so that the details can be seen, heard, or understood well without any guesswork

1.adverbA2
Definition

so that the details can be seen, heard, or understood well without any guesswork

Example

Kofi explained the math problem clearly, and everyone understood it.

adverb after verb: explained clearly

The sign at the station clearly shows the train times for each line.

adverb before verb: clearly shows

Common collocations
  • speak clearly
  • explain clearly
  • hear clearly
  • see clearly
  • write clearly
  • clearly visible
Synonyms
  • plainly

    emphasizes simplicity and directness; less formal

  • distinctly

    stresses that each part is separate and recognizable

  • legibly

    used only for handwriting or print, not speech

Antonyms
  • unclearly

    the direct opposite; less common

  • vaguely

    suggests missing details or blurry boundaries

Grammar Patterns

clearly + verb

verb + clearly

clearly + adjective/past participle

Usage Note

This sense can go either before or after the verb. Before the verb (clearly shows) it tends to add emphasis; after the verb (explained clearly) it focuses on the manner.

Common Mistakes

She spoke cleanly and everyone understood.
She spoke clearly and everyone understood.
Cleanly means without creating dirt or mess; clearly means in an easy-to-understand way.
He talks clear to the class.
He talks clearly to the class.
As an adverb modifying a verb, clearly needs the -ly ending in standard English.

2. used to state that you are sure something is true, often because the evidence is

2.adverbB1
Definition

used to state that you are sure something is true, often because the evidence is strong; without doubt

Example

Priya was clearly upset about missing the party last night.

clearly + adjective (clearly upset)

This is clearly a situation where the rules need to be changed.

clearly + noun phrase

Common collocations
  • clearly wrong
  • clearly right
  • clearly the best
  • clearly needs
  • clearly not
Synonyms
  • obviously

    more direct and often stronger; common in spoken English

  • evidently

    slightly more formal; implies evidence-based certainty

  • undoubtedly

    strongest level of certainty; formal or written

Antonyms
  • possibly

    expresses uncertainty rather than certainty

  • unclear

    used as an adjective in phrases like 'it is unclear whether'

Grammar Patterns

clearly + clause

clearly + adjective

Usage Note

Commonly used as a sentence adverb at the start of a statement. It signals the speaker's certainty rather than describing the manner of an action — a key difference from sense 1.

Common Mistakes

She is clearly a doctor' (meaning she works as a doctor visibly).
She is clearly a doctor, given her white coat and stethoscope.
When using clearly to express certainty, add context that shows the evidence you are relying on.
Clearly, you can go now' (when giving permission).
You can clearly go now
the meeting is over.' — Without context, the intended meaning shifts from certainty to manner.

3. in a way that is logical and focused, with no confusion or tiredness in your min

3.adverbA2
Definition

in a way that is logical and focused, with no confusion or tiredness in your mind

Example

After a good night of sleep, Hana could think clearly again.

cognition verb: think clearly

Theo tried to think clearly despite the loud music in the café.

try to + think clearly

Common collocations
  • think clearly
  • reason clearly
  • see clearly
Synonyms
  • lucidly

    more formal; often used for explaining ideas

  • coherently

    emphasizes that ideas connect logically

  • rationally

    stresses logic over emotion

Antonyms
  • confusedly

    the direct opposite; less common

  • hazily

    suggests vague or unclear thought

Grammar Patterns

think clearly

see clearly

reason clearly

Usage Note

Only used with verbs of thinking, reasoning, or mental perception. It does not describe physical sight or hearing — that belongs to sense 1. Compare 'I can't see clearly without my glasses' (sense 1, physical) with 'I can't see clearly what the problem is' (sense 3, mental).

Common Mistakes

I walked clearly down the street.
I walked carefully down the street.
Clearly is for clear thinking or clear senses, not for careful movement.

Word family

Synonym discussion

Sense: adverb/1

All four words describe ways of being easy to perceive, but they differ in focus. Plainly stresses simplicity and directness — a plainly written letter avoids fancy language. Distinctly emphasizes that every part stands apart from others: you can hear the distinct notes of a piano. Legibly applies only to handwriting or print that is easy to read. Lucidly is more formal and is used for clear explanations of complex ideas, such as a professor explaining a theory lucidly. For everyday speech and writing, clearly is the broadest and most natural choice. If you can see the road signs without squinting, use clearly; if you can pick each letter out, use distinctly; if you can read your friend's messy note, use legibly.

plainly ↗distinctly ↗legiblylucidly

Common collocations

Adverbs

  • quite clearly
  • very clearly
  • perfectly clearly
  • fairly clearly
  • absolutely clearly

Phrases

  • clearly defined
  • clearly stated
  • clearly marked
  • clearly understood

Etymology

LatinFrenchEnglish

Clearly is formed from the adjective clear (meaning 'bright, transparent, easy to see through') plus the adverb-forming suffix -ly. Clear entered English through Old French cler, which came from Latin clarus, meaning 'bright, shining, renowned.' The sense of mental or logical clarity developed in the 1300s, and by the 1500s clearly was being used as a sentence adverb to express certainty about a whole statement.