DictionaryAI

silly

SI-lee/ˈsɪ.li/

Adjectivesillier, silliest

Noun pluralsillies

Adverbsillier, silliest

16 meanings of silly

Practice

  1. 1
    funnyadjective
    Laughable or amusing because of foolishness or a foolish appearance.

    The comedian's silly walk had the whole audience in stitches.

    Of all the costumes at the party, the giant inflatable banana was the silliest.

    Similarridiculous, absurd, ludicrous, comical, goofy

    Oppositeserious

  2. 2
    unwiseadjective
    Thoughtless; showing a lack of care or good judgment in what one does or says.

    Lending him money again was a silly decision, and she knew it.

    It would be silly to ignore the engine warning light a second time.

    UsageCommon in don't be silly and it would be silly to + verb.

    Similarfoolish, unwise, stupid, thoughtless, careless

    Oppositesensible, wise, prudent

    Note

    Here silly judges a choice rather than raising a laugh. A silly mistake is careless, not comic, and that is the line between this meaning and the laughable sense. A natural home is the spoken rebuke 'don't be silly', as in American Graffiti, where it gently corrects a misunderstanding. Dickens's 'Heaven help this silly fellow' in Barnaby Rudge carries a more exasperated tone.

    Checked 1 Nov 2026 · 3 facts

  3. 3
    nounendearing
    A foolish person, especially one who is being playful rather than truly unwise; often used affectionately as a teasing form of address.

    Come here, silly, your shirt is on backward.

    Of course you're still invited, silly.

    UsageUsually said to the person, often at the end of a sentence: of course you're invited, silly.

    Similargoose, goof

    Note

    Said straight to someone, it teases rather than wounds. In St. Nicholas (1918), Nannie says 'Come on, silly.'

    Checked 2 Nov 2026 · 1 fact

    • St. Nicholas contains the quotation 'Come on, silly', spoken by Nannie, in its September 1918 issue. en.wiktionary.org
  4. 4
    far too bigadjective
    Absurdly large or excessive, especially of prices or amounts of money.

    That coffee shop charges silly prices for a plain bagel.

    He's earning silly money streaming video games online.

    UsageMostly with money: silly money, silly prices.

    Similarridiculous, crazy, absurd, outrageous, exorbitant

    Oppositereasonable, modest

    Note

    It carries the absurdity of the laughable sense over to numbers: a figure so large it seems a joke. The Saturday Review in 1875 mocks a man for 'giving a silly price for a hack', and the word now sits comfortably in silly money and silly prices. It is a judgment, not a measurement: a silly price is one the speaker finds unreasonable, whatever the actual sum.

    Checked 2 Nov 2026 · 1 fact

    • The Saturday Review used 'giving a silly price for a hack' disparagingly in 1875. en.wiktionary.org
  5. 5
    foolishlyadverbdialectal
    In a foolish or playful manner; in the way a silly person acts.

    Quit talking silly and tell me what actually happened.

    Whenever their cousins visit, the twins start talking silly and can't stop giggling.

    UsageUsed after verbs such as talk or act: talking silly. In formal writing, prefer in a silly way.

    Similarfoolishly

    Oppositesensibly

    Note

    It does an adverb's job in the adjective's shape, where the expected form would be sillily. Colley Cibber's comedy The Careless Husband, first staged in 1704, shows the pattern in 'how silly a Man fumbles for an Excuse'.

  6. 6
    adjectivedialectalNorthern EnglandScotland
    Insignificant or worthless, especially, chiefly in Scotland, with regard to the quality of land.
    It is naturally very poor, ‘silly’ land.
    1907, Transactions of the Highland & Agricultural Society, 19
    Ane sillie scheill vnder ane erdfast stane
    a. 1500, Aesop, Two Mice

    Similarpoor, worthless

    Note

    Farm talk kept this sense working longest, especially in Scotland. The Transactions of the Highland & Agricultural Society in 1907 describes ground as 'naturally very poor, silly land'. Older uses are wider. In Shakespeare's Third Part of Henry the Sixth, a pedigree of sixty-two years is 'a sillie time', far too slight to establish a claim to a kingdom. Paired with land or soil, it means thin and unproductive.

    Checked 1 Nov 2026 · 3 facts

    • The Transactions of the Highland & Agricultural Society contains the quoted description in 1907. en.wiktionary.org
    • The Shakespeare quotation includes the wording 'a sillie time'. en.wiktionary.org
    • In Shakespeare's Third Part of Henry the Sixth, a sixty-two-year pedigree is dismissed as insufficient to establish a kingdom claim. en.wikisource.org

Practice

Can you tell the meanings of silly apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

From Middle English seely, from Old English sǣliġ or ġesǣliġ ("lucky, fortunate"), going back to Proto-West Germanic *sālīg, and equivalent to seel ("happiness, bliss") plus -y. Its meaning shifted over time from "lucky" to "innocent" to "naive" and eventually to "foolish."

Checked 1 Nov 2026 · 5 facts

  • Silly derives from Middle English seely. en.wiktionary.org
  • The Middle English word derives from Old English sǣliġ or ġesǣliġ, meaning lucky or fortunate. en.wiktionary.org
  • The word goes back to reconstructed Proto-West Germanic *sālīg. en.wiktionary.org
  • Its formation is equivalent to seel, meaning happiness or bliss, plus -y. en.wiktionary.org
  • Its meaning developed from lucky through innocent and naive to foolish. en.wiktionary.org