Dictionary.com
Thesaurus.com
Synonyms

prone

1 American  
[prohn] / proʊn /

adjective

  1. having a natural inclination or tendency to something; disposed; liable.

    to be prone to anger.

    Synonyms:
    subject, apt
  2. having the front or ventral part downward; lying face downward.

  3. lying flat; prostrate.

    Synonyms:
    recumbent
  4. having a downward direction or slope.

  5. having the palm downward, as the hand.


prone 2 American  
[prohn] / proʊn /

noun

  1. a sermon or a brief hortatory introduction to a sermon, usually delivered at a service at which the Eucharist is celebrated.


prone 1 British  
/ prəʊn /

adjective

  1. lying flat or face downwards; prostrate

  2. sloping or tending downwards

  3. having an inclination to do something

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

-prone 2 British  

combining form

  1. liable or disposed to suffer

    accident-prone

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • pronely adverb
  • proneness noun

Etymology

Origin of prone1

First recorded in 1350–1400; Middle English, from Latin prōnus “turned or leaning forward, inclined downward, disposed,” adverb based on prō pro 1 ( def. )

Origin of prone2

First recorded in 1660–70; from French prône “grill, grating (separating chancel from nave),” so called because notices and addresses were delivered there, from Old French prodne, prorne, prosne, by way of a Medieval Latin or Late Latin intermediary such as protinum (unrecorded) from Latin prothyrum “foyer, porch, vestibule,” from Greek próthyron, from pró pro- 2 ( def. ) + thýra “door” ( door ( def. ) )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For decades, the Arab states of the Persian Gulf sold themselves as an oasis of peace in a region prone to conflict, attracting wealthy expats, multinational corporations and investment.

From The Wall Street Journal

Companies have said the technology can speed up transactions and save workers' time on routine tasks, but the technology can be prone to hallucinations, causing it to behave unexpectedly.

From BBC

Others questioned how accurate the chat-bot headsets will be, given that AI tools have proven to be prone to errors.

From BBC

Understanding how they influence retreat rates will help scientists better forecast which glaciers might be prone to sudden collapse in the future.

From Science Daily

Bears see this as a safer route than betting against stocks, which are more prone to sudden price spikes that could squeeze their short positions.

From The Wall Street Journal