DictionaryAI

silly

SI-lee/ˈsɪ.li/

Adjectivesillier, silliest

Noun pluralsillies

Adverbsillier, silliest

16 meanings of silly

Practice

  1. 1
    funnyadjective
    Funny because of foolish actions or a foolish look.

    Like a clown's big red nose: it makes people laugh because it looks foolish.

    He wore a silly hat with rubber ducks glued all over it.

    She made silly faces until the baby finally laughed.

    Similarridiculous, absurd, ludicrous, comical, goofy

    Oppositeserious

  2. 2
    unwiseadjective
    Not thinking carefully about what you do or say.

    It was silly of me to leave my phone on the bus.

    He took a silly risk by driving with almost no gas.

    UsageSay don't be silly, or it's silly to do something.

    Similarfoolish, unwise, stupid, thoughtless, careless

    Oppositesensible, wise, prudent

    Note
  3. 3
    nounendearing
    A person being foolish in a playful way. It is often said kindly to someone, as in 'Come here, silly.'

    Come on, silly, put your coat on before we go.

    You don't need to knock, silly. Just come in!

    UsageOften at the end of a sentence: of course you can come, silly.

    Similargoose, goof

    Note
  4. 4
    far too bigadjective
    So big that it is hard to believe, especially a price.

    The tickets cost a silly amount of money.

    They want a silly price for that tiny apartment.

    UsageSay silly money or silly prices.

    Similarridiculous, crazy, absurd, outrageous, exorbitant

    Oppositereasonable, modest

    Note
  5. 5
    foolishlyadverbdialectal
    In a foolish or playful way, without thinking.

    Don't talk silly. We can't buy a new car right now.

    The kids were running around silly before bedtime.

    UsageYou can say talk silly. In formal writing, use in a silly way.

    Similarfoolishly

    Oppositesensibly

    Note
  6. 6
    adjectivedialectalNorthern EnglandScotland
    Having little worth or use, often said about poor land.
    It is naturally very poor, ‘silly’ land.
    1907, Transactions of the Highland & Agricultural Society, 19Here, silly means poor and worthless, land of little use.
    Ane sillie scheill vnder ane erdfast stane
    a. 1500, Aesop, Two Mice

    Similarpoor, worthless

    Note

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 Old English sǣliġ, meaning "lucky" or "fortunate." Over time the meaning changed from "lucky" to "innocent," then "naive," and finally "foolish."

Checked 1 Nov 2026 · 2 facts

  • Silly derives from Old English sǣliġ, meaning lucky or fortunate. en.wiktionary.org
  • Its meaning developed from lucky through innocent and naive to foolish. en.wiktionary.org