Moonstruck

/ˈmuːnstɹʌk/ adj

adj ·Rare ·Advanced level

Meaning at a glance

  • Primary sense: Of a person: perverted or insane, originally supposedly due to the influence of the Moon; compare lunatic.
  • Grammar: moonstruck is listed as adj.
  • Nearest alternatives: crazy, dreamy, insane, lunatic.
  • Useful contrasts: grounded, levelheaded, practical.
  • Usage evidence: VVhat miſerie th' inabſtinence of Eve / Shall bring on men. […] all maladies / Of gaſtly Spaſm, or racking torture, qualmes / Of heart-ſick Agonie, all feavorous kinds, / Convulſions, Epilepſies, fierce Catarrhs, / Inteſtin Stone and Ulcer, Colic pangs, / Dæmoniac Phrenzie, moaping Melanchole / And Moon-ſtruck madneſs, pining Atrophie, / Maraſmus, and vvide-vvaſting Peſtilence, / Dropſies, and Aſthma's, and Joint-racking Rheums.

How to use "moonstruck"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "moonstruck" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "moonstruck" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "moonstruck" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "moonstruck" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "moonstruck" is acting as adj in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "crazy" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "moonstruck", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Adjective
  1. 1
    Of a person: perverted or insane, originally supposedly due to the influence of the Moon; compare lunatic. archaic

    "VVhat miſerie th' inabſtinence of Eve / Shall bring on men. […] all maladies / Of gaſtly Spaſm, or racking torture, qualmes / Of heart-ſick Agonie, all feavorous kinds, / Convulſions, Epilepſies, fierce Catarrhs, / Inteſtin Stone and Ulcer, Colic pangs, / Dæmoniac Phrenzie, moaping Melanchole / And Moon-ſtruck madneſs, pining Atrophie, / Maraſmus, and vvide-vvaſting Peſtilence, / Dropſies, and Aſthma's, and Joint-racking Rheums."

  2. 2
    Showing irrational behaviour, especially of a romantic or sentimental nature; in an entranced or distracted state, especially due to being in love. figuratively

    "[…] I, the moon-struck slave of Dora, perambulated round and round the house and garden for two hours, […] blowing kisses at the lights in the windows, and romantically calling on the night, at intervals, to shield my Dora—I don't know exactly what from, I suppose from fire."

  3. 3
    Made physically sick, or (like fish) unsuitable for food, by the supposed effect of moonlight. regional

    ""Yes, yes, thank God! I am not blind; I was afraid I was moon-struck." "Moon-struck!" uttered Carlos in astonishment. "What do you mean?" "Why, don't you know," answered Antonio, "that sleeping in the open air by moonlight often causes contractions, and sometimes makes persons blind whenever the moon shines?""

Adjective
  1. 1
    insane and believed to be affected by the phases of the moon wordnet

Example

"VVhat miſerie th' inabſtinence of Eve / Shall bring on men. […] all maladies / Of gaſtly Spaſm, or racking torture, qualmes / Of heart-ſick Agonie, all feavorous kinds, / Convulſions, Epilepſies, fierce Catarrhs, / Inteſtin Stone and Ulcer, Colic pangs, / Dæmoniac Phrenzie, moaping Melanchole / And Moon-ſtruck madneſs, pining Atrophie, / Maraſmus, and vvide-vvaſting Peſtilence, / Dropſies, and Aſthma's, and Joint-racking Rheums."

Common questions

What does "moonstruck" mean?

Of a person: perverted or insane, originally supposedly due to the influence of the Moon; compare lunatic.

What is a synonym for "moonstruck"?

Common synonyms include: crazy, dreamy, insane, lunatic, romantic, sentimental.

How do you use "moonstruck" in a sentence?

VVhat miſerie th' inabſtinence of Eve / Shall bring on men. […] all maladies / Of gaſtly Spaſm, or racking torture, qualmes / Of heart-ſick Agonie, all feavorous kinds, / Convulſions, Epilepſies, fierce Catarrhs, / Inteſtin Stone and Ulcer, Colic pangs, / Dæmoniac Phrenzie, moaping Melanchole / And Moon-ſtruck madneſs, pining Atrophie, / Maraſmus, and vvide-vvaſting Peſtilence, / Dropſies, and Aſthma's, and Joint-racking Rheums.

How do you pronounce "moonstruck"?

Pronounced /ˈmuːnstɹʌk/.

Etymology

From moon + struck (adjective), possibly coined by the English poet and polemicist John Milton (1608–1674): see the quotation. Compare Byzantine Greek σεληνόβλητος (selēnóblētos), σεληνόπληκτος (selēnóplēktos), German mondsüchtig, and German Low German maansüchtig, which also refer to being struck by the moon.

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