lucid

[ loo-sid ]

adjective

1. easily understood; completely intelligible or comprehensible:

   a lucid explanation.

   Synonyms: obvious, evident, understandable, plain

   Antonyms: obscure

2. characterized by clear perception or understanding; rational or sane:

   a lucid moment in his madness.

   Synonyms: reasonable, sound

   Antonyms: irrational

3. shining or bright.

   Synonyms: luminous, radiant

   Antonyms: dim

4. clear; pellucid; transparent.

   Synonyms: limpid

   Antonyms: obscure

lucid

/ ˈluːsɪd /

adjective

1. readily understood; clear
2. shining or glowing
3. psychiatry of or relating to a period of normality between periods of insane or irresponsible behaviour

Derived Forms

• luˈcidity, noun
• ˈlucidly, adverb

Other Words From

• lu·cidi·ty lucid·ness noun
• lucid·ly adverb
• non·lucid adjective
• non·lucid·ly adverb
• non·lucid·ness noun
• un·lucid adjective
• un·lucid·ly adverb
• un·lucid·ness noun

Word History and Origins

Origin of lucid¹

First recorded in 1575–85; from Latin lūcidus, equivalent to lūc- (stem of lūx light ¹ ) + -idus -id ⁴

Word History and Origins

Origin of lucid¹

C16: from Latin lūcidus full of light, from lūx light

Example Sentences

Tanton also had an early and lucid understanding that climate change would exacerbate the country’s immigration conundrum, and it ultimately framed his life’s work.

From Salon

Only 40 minutes into the competition and now it is beginning to feel like a lucid dream.

From Salon

She began to research if there was a drug that could have put her mum under somebody’s influence, but also leave her lucid enough to gather her valuables from hiding places around her home.

From BBC

“They engaged a male who was very lucid, who knew what he wanted and what he didn’t want,” Albanese said.

From Los Angeles Times

Director Mike Reilly does a lucid job of sorting out the play’s diptych structure.

From Los Angeles Times

Related Words

• rational
• sane
• sober