Simple Definition of lucid
: very clear and easy to understand
: able to think clearly
Examples of lucid in a sentence
His lucid history of this grim subject is scrupulously accurate, so far as I am able to judge … —Richard A. Posner, New Republic, 8 Apr 2002
“You would like me to read to you?” “You would oblige me greatly by doing so, Dorothea,” said Mr. Casaubon, with a shade more meekness than usual in his polite manner. “I am wakeful: my mind is remarkably lucid.” —George Eliot, Middlemarch, 1872
The atmosphere, seen through a short space of half or three-quarters of a mile, was perfectly lucid, but at a greater distance all colours were blended into a most beautiful haze … —Charles Darwin, The Voyage of the Beagle, 1839
The stroke also set off a major crisis of presidential succession, as the debilitated and not entirely lucid president continued to cling to office and plan feebly for re-election. —Beverly Gage New York Times Book Review, 13 Dec 2009
He is able to recognize his wife in his lucid moments.
<those lucid bands that spread across the arctic sky and are known as the northern lights>
Did You Know?
It's easy enough to shed some light on the origins of "lucid" - it derives, via the Latin adjective lucidus, meaning "shining," from the Latin verb lucēre, meaning "to shine." "Lucid" has been used by English speakers since at least the late 16th century. Although it once meant merely "filled with light" or "shining," it has developed extended senses describing someone whose mind is clear or something with a clear meaning. Other shining examples of "lucēre" descendants include "translucent," "lucent" ("glowing"), and the somewhat rarer "relucent" ("reflecting light" or "shining"). Even the word light itself derives from the same ancient word that led to "lucēre."
Origin of lucid
Latin lucidus, from lucēre (see lucent)
First Known Use: 1591
Synonym Discussion of lucid
clear, perspicuous, lucid mean quickly and easily understood. clear implies freedom from obscurity, ambiguity, or undue complexity <clear instructions>. perspicuous applies to a style that is simple and elegant as well as clear <a perspicuous style>. lucid suggests a clear logical coherence and evident order of arrangement <a lucid explanation>.
Rhymes with lucid
LUCID Defined for Kids
Definition of lucid for Students
1 : having or showing the ability to think clearly <lucid behavior>
2 : easily understood <lucid writing>
Medical Definition of lucid
: having, showing, or characterized by an ability to think clearly and rationally
Seen and Heard
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