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Definition of lucid

lucid

/ˈluː.sɪd/
lu · cid
Adverb:lucidly
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lucid Lexical Profile

lucid Game Scores & Validity

• adjective

1

Expressed clearly and logically; easy to understand.

Example

"The professor gave a lucid explanation of the complex economic theory."

2

Mentally rational, alert, and clear-headed, especially during an interval between periods of confusion, illness, or unconsciousness.

Example

"Although his fever remained high, the patient had several lucid moments during the afternoon."

3

Bright, luminous, or translucent (chiefly literary).

Example

"Sunlight filtered down through the lucid waters of the mountain stream."

Synonyms
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Antonyms
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• Nearby Words

lubumbashi
lucania
lucerne
lucid
lucidity
lucidly
lucidness

Word Origin & Etymology

Borrowed in the late 16th century from Latin 'lucidus' ('light, bright, clear'), derived from the verb 'lucere' ('to shine'), from 'lux' ('light').

Cite this Entry

Wordmom. (2026). Definition of Lucid. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lucid
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