- easily understood; completely intelligible or comprehensible: a lucid explanation.
- characterized by clear perception or understanding; rational or sane: a lucid moment in his madness.
- shining or bright.
- clear; pellucid; transparent.
Origin of lucid
SynonymsSee more synonyms for lucid on Thesaurus.com
Examples from the Web for lucid
Joseph Heller called it the “most stirring and lucid account of World War II that I have ever read.”Blood in the Sand: When James Jones Wrote a Grunt’s View of D-Day
November 15, 2014
Compact and precise—just 172 pages of text and 23 pages of notes—the book is a model of lucid historical writing.The Best Books on President Lincoln
February 17, 2014
This “lucid interval” is found in nearly half of all cases of epidural hematoma (Bullock, Neurosurgery, 2006).Brain Bleed: Why Michael Schumacher’s Helmet Wasn’t Enough
Dr. Anand Veeravagu, MD, Tej Azad
January 3, 2014
I would look at the rest of his work to see if he was interested in lucid dreaming.To Dream a Dream: Georges Perec’s Night Visions
December 26, 2013
My old boss has produced a highly readable, engaging, lucid book on practical economics.Our Favorite Books of 2012: Tina Brown, Andrew Sullivan, and Others’ Picks
The Daily Beast
December 11, 2012
Many of his decisions were models of deep research and lucid statement.Cleveland Past and Present
Thereupon he gave a brief, lucid account of what had occurred in the night.Heather and Snow
Sometimes in lucid moments he thought he was like a place where there had once been a spring.Father Sergius
Milly followed this—it was lucid; but it suggested something apart.The Wings of the Dove, Volume 1 of 2
He must be master of a lucid, virile, attractive literary style.College Teaching
- readily understood; clear
- shining or glowing
- psychiatry of or relating to a period of normality between periods of insane or irresponsible behaviour
Word Origin and History for lucid
1590s, "bright, shining," from Latin lucidus "light, bright, clear," figuratively "perspicuous, lucid, clear," from lucere "to shine," from lux (genitive lucis) "light," from PIE root *leuk- "to shine, be bright" (see light (n.)). Sense of "easy to understand" first recorded 1786. Lucid interval "period of calm or temporary sanity" (1580s) is from Medieval Latin lucida intervalla (plural), which was common in medieval English legal documents (cf. non est compos mentis, sed gaudet lucidis intervallis). Related: Lucidly; lucidness (1640s).