lucid

See also: Lucid and lúcid

English

Etymology

Etymology tree

Proto-Indo-European *lewk-

Proto-Indo-European *-yeti

Proto-Indo-European *-éyeti

Proto-Indo-European *lowkéyeti

Proto-Italic *loukeō

Proto-Indo-European *lewk-der.

Proto-Italic *loukēō

Latin lūceō

Proto-Indo-European *dʰeh₁-der.

Proto-Italic *-iðos

Latin -idus

Latin lūcidus

English lucid

Latin lucidus, from lūceō (“shine”) + -idus.

Pronunciation

• IPA^(key): /ˈl(j)uːsɪd/

• Audio (Southern England):

  (file)

• Rhymes: -uːsɪd

Adjective

lucid (comparative lucider or more lucid, superlative lucidest or most lucid)

1. Clear; easily understood.
   • 2014 September 26, Tom Payne, “Sapiens: a Brief History of Humankind by Yuval Noah Harari, review: 'urgent questions' [print version: The story of our species, 27 September 2014, p. R32]”, in The Daily Telegraph (Review)‎^[1]:

     [T]he book, constructed in short, lucid episodes, can be satisfyingly read as a sequence of provocative talks, at once well informed and vatic.

2. Mentally rational; sane.
3. Bright, luminous, translucent, or transparent.
   • 1837, L[etitia] E[lizabeth] L[andon], “The Fête”, in Ethel Churchill: Or, The Two Brides. […], volume III, London: Henry Colburn, […], →OCLC, page 57:

     The atmosphere was unusually clear, as if loath to part with the daylight; but the moon, like a round of lucid snow, had risen on the sky; and a pale, soft gleam, came from the lamps amid the foliage.

   • 1865, Walt Whitman, “When Lilacs Last in the Dooryard Bloom’d”, in Sequel to Drum-Taps: When Lilacs Last in the Dooryard Bloom’d and other poems:

     Pictures of growing spring and farms and homes, / With the Fourth-month eve at sundown, and the gray smoke lucid and bright, […]

Synonyms

• (easily understood): clear, perspicuous, straightforward; See also Thesaurus:comprehensible
• (mentally rational): coherent, sane
• (bright): brilliant, light
• (luminous): glowing, radiant; See also Thesaurus:shining
• (transparent): clear, pellucid, see-through, transparent; See also Thesaurus:transparent or Thesaurus:translucent

Derived terms

• circumlucid
• hyperlucid
• lucid dream
• lucid dreaming
• lucid interval
• lucidity (noun)
• lucidly (adverb)
• lucidness
• lucidophyll
• nonlucid
• semilucid
• sublucid
• terminal lucidity
• ultralucid
• unlucid

Related terms

• dilucidate
• dilucular
• elucidate

Translations

clear; easily understood

• Bulgarian: ясен (bg) (jasen), разбираем (bg) (razbiraem)
• Catalan: lúcid (ca)
• Chinese:

  Mandarin: 清楚 (zh) (qīngchǔ), 易懂 (zh) (yìdǒng), 清晰 (zh) (qīngxī)

• Dutch: lucide (nl)
• Finnish: selvä (fi), selkeä (fi)
• French: clair (fr) m, claire (fr) f
• German: klar (de), übersichtlich (de), verständlich (de), einleuchtend (de), luzid (de), deutlich (de)
• Gothic: 𐍃𐌺𐌴𐌹𐍂𐍃 (skeirs)
• Hungarian: világos (hu), érthető (hu), áttekinthető (hu), értelmes (hu), tiszta (hu)
• Irish: glé
• Latin: lūcidus
• Macedonian: јасен m (jasen), луциден m (luciden)
• Māori: mārama, ariroa
• Plautdietsch: kloa
• Polish: jasny (pl), klarowny (pl), przejrzysty (pl) m
• Portuguese: lúcido (pt)
• Russian: я́сный (ru) (jásnyj), поня́тный (ru) (ponjátnyj)
• Serbo-Croatian: razumljiv (sh) m
• Spanish: lúcido (es)
• Turkish: açık seçik (tr) n (colloquial)
• Ukrainian: ясний (uk) m (jasnyj), зрозумілий m (zrozumilyj)

mentally rational; sane

• Catalan: lúcid (ca)
• Chinese:

  Mandarin: 清楚 (zh) (qīngchǔ), 清明 (zh) (qīngmíng)

• Finnish: selväpäinen (fi), selkeä-älyinen
• French: lucide (fr) m or f
• German: rational (de), verständig (de), klar (de), brillant (de), bei Verstand m
• Hungarian: világos (hu), tiszta (hu)
• Irish: meabhrach
• Macedonian: разумен m (razumen), рациона́лен m (racionálen)
• Portuguese: lúcido (pt)
• Russian: разу́мный (ru) (razúmnyj), рациона́льный (ru) (racionálʹnyj)
• Serbo-Croatian: razuman (sh) m
• Spanish: lúcido (es)
• Ukrainian: розумний m (rozumnyj), раціональний m (racionalʹnyj), з ясним розумом (z jasnym rozumom)

bright, luminous, translucent or transparent

• Bulgarian: светъл (bg) (svetǎl), блестящ (bg) (blestjašt)
• Catalan: lúcid (ca)
• Chinese:

  Mandarin: 清澈 (zh) (qīngchè), 透明 (zh) (tòumíng)

• Finnish: selkeä (fi), kirkas (fi), läpikuultava (fi), läpinäkyvä (fi)
• German: hell (de), klar (de), leuchtend (de), transparent (de), transluzent, licht (de), glänzend (de)
• Hungarian: fényes (hu), ragyogó (hu), csillogó (hu), tündöklő (hu)
• Ido: lumoza (io)
• Macedonian: светол m (svetol), бистар m (bistar), ведар m (vedar)
• Portuguese: lúcido (pt)
• Russian: све́тлый (ru) (svétlyj), я́сный (ru) (jásnyj)
• Spanish: lucido (es), brillante (es)
• Ukrainian: світлий (uk) m (svitlyj), ясний (uk) m (jasnyj)

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• Dutch: ^{(please verify)} helder (nl), ^{(please verify)} duidelijk (nl), ^{(please verify)} transparant (nl)
• French: ^{(please verify)} lucide (fr)
• German: ^{(please verify)} einleuchtend (de) (1), ^{(please verify)} klar (de) (1, 2), ^{(please verify)} bei Verstand (2), ^{(please verify)} leuchtend (de) (3)
• Ido: ^{(please verify)} lucida (io)
• Italian: ^{(please verify)} lucido (it)

Noun

lucid (plural lucids)

1. A lucid dream.
   • 1986, Benjamin B. Wolman, Montague Ullman, Handbook of states of consciousness, page 163:

     The day before nightmare-initiated lucids, subjects reported more depressed feelings […]

Anagrams

• Ludic, dulic, ludic

Romanian

Etymology

Borrowed from French lucide. Compare the inherited form Latin luced

Pronunciation

• IPA^(key): /luˈt͡ʃid/

Adjective

lucid m or n (feminine singular lucidă, masculine plural lucizi, feminine/neuter plural lucide)

1. lucid, clear-sighted

Declension

Declension of lucid

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative- accusative	indefinite	lucid		lucidă	lucizi	lucide
	definite	lucidul		lucida	lucizii	lucidele
genitive- dative	indefinite	lucid		lucide	lucizi	lucide
	definite	lucidului		lucidei	lucizilor	lucidelor

Related terms

• luciditate

Further reading

• “lucid”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2026

Spanish

Verb

lucid

1. second-person plural imperative of lucir