readily understood; clear shining or glowing of or relating to a period of mental clarity occurring between periods of delirium, disorganization, or confusion brought on by mental illness
WordReference Random House Learner's Dictionary of American English © 2025
lu•cid /ˈlusɪd/USA pronunciation
adj.
lu•cid•ly, adv. See -luc-.
WordReference Random House Unabridged Dictionary of American English © 2025- easily understood; intelligible:a lucid explanation.
- rational;
sane:a few lucid moments in his madness. - glowing with light.
lu•cid•ly, adv. See -luc-.
lu•cid
(lo̅o̅′sid),USA pronunciation adj.
lu•cid′i•ty, lu′cid•ness, n.
lu′cid•ly, adv.
- 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.
- Latin lūcidus, equivalent. to lūc-, stem of lūx light1 + -idus -id4
- 1575–85
lu′cid•ly, adv.
- 1.See corresponding entry in Unabridged plain, understandable, evident, obvious.
- 2.See corresponding entry in Unabridged sound, reasonable.
- 3.See corresponding entry in Unabridged radiant, luminous.
- 4.See corresponding entry in Unabridged limpid.
- 1, 4.See corresponding entry in Unabridged obscure.
- 2.See corresponding entry in Unabridged irrational.
- 3.See corresponding entry in Unabridged dim.
Collins Concise English Dictionary © HarperCollins Publishers::
'lucid' also found in these entries (note: many are not synonyms or translations):
camera lucida
- clear
- crystal-clear
- elucidate
- illuminate
- impenetrable
- incandescent
- intelligible
- limpid
- lucent
- lucerne
- lucida
- luculent
- luminous
- nonlucidity
- opaque
- organic
- pellucid
- perlucidus
- perspicuous
- plain
- protocol
- rational
- simple
- subdelirium
- translucent
- translucid