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90s Slang You Should Know


[loo-sid] /ˈlu sɪd/
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
1575-85; < Latin lūcidus, equivalent to lūc-, stem of lūx light1 + -idus -id4
Related forms
lucidity, lucidness, noun
lucidly, adverb
nonlucid, adjective
nonlucidly, adverb
nonlucidness, noun
unlucid, adjective
unlucidly, adverb
unlucidness, noun
1. plain, understandable, evident, obvious. 2. sound, reasonable. 3. radiant, luminous. 4. limpid.
1, 4. obscure. 2. irrational. 3. dim. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for lucidly
Contemporary Examples
Historical Examples
  • He thought it wonderful that a brain could think a thing out so clearly and words express thoughts so lucidly.

    Marching Men Sherwood Anderson
  • The rules are lucidly explained, and the selections made with taste.

  • The views I have often heard in England, but never uttered so lucidly, and certainly never so fast.

    Tremendous Trifles G. K. Chesterton
  • To think sharply and lucidly is the result of self-discipline.

  • I told him, lucidly as possible, everything I have related in these pages, and the admission of Griggs.

    Richard Carvel, Complete Winston Churchill
  • "You're so good that nothing shocks you," she lucidly persisted.

    The Awkward Age Henry James
  • Breath control, voice production, and other technical matters are lucidly set forth.

  • He said this so lucidly and consistently that he could see it further impose itself.

British Dictionary definitions for lucidly


readily understood; clear
shining or glowing
(psychiatry) of or relating to a period of normality between periods of insane or irresponsible behaviour
Derived Forms
lucidity, lucidness, noun
lucidly, adverb
Word Origin
C16: from Latin lūcidus full of light, from lūx light
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for lucidly



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).

Online Etymology Dictionary, © 2010 Douglas Harper
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