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unprecedented Definition

un·prec·edent·ed (-pres′ə den′tid)

adjective

having no precedent or parallel; unheard-of; novel

  • unpredictability
  • unpredictable
  • unpredictably

unprecedented Synonyms

unprecedented

modif.

unparalleled, unique, novel, original, anomalous, abnormal, freakish, untoward, unusual, out-of-the-way, uncommon, eccentric, bizarre, odd, idiosyncratic, aberrant, prodigious, unexampled, outré (French), exotic, preternatural, miraculous, marvelous, outlandish, newfangled, modern, fantastic; see also single.

Antonyms common*, regular*, everyday.

unprecedented Usage Examples

Adjective complement with noun phrase

give: The SenderBase Network gives mail administrators unprecedented real-time visibility into security threats from around the world.

Used with adjective complement

achieve: Both these systems have achieved unprecedented tuning ranges in this wavelength range.

Modifies a noun

  • scale: We may also face a refugee crisis on an unprecedented scale.
  • boom: The tourist industry in Northern Ireland enjoyed an unprecedented boom prior to the end of the IRA cease-fire.
  • prosperity: Taiwan's competitive and dynamic free-market economy has brought unprecedented prosperity to all levels of society.
  • precision: It's also that the campaign is being coordinated globally with an unprecedented precision.
  • surge: This unprecedented surge in support for the fundamentalists can only be attributed to the US invasion of Afghanistan.
  • growth: We have seen unprecedented growth in the Irish economy in recent years, he said.

Modifying Another Word

  • historically: This growth, in the second half of the 20th C, was historically unprecedented.
  • almost: Prices had tumbled down to almost unprecedented low levels.
  • virtually: Such a success rate at the first attempt is virtually unprecedented.
  • absolutely: This is the only key to an understanding of its absolutely unprecedented excesses.
  • totally: Staring back at me from the kitchen table this morning - the totally unprecedented new look?
  • quite: The level of violence we are witnessing by robbers intent on stealing is quite unprecedented.

Preposition: in

  • history: Such a large group of nations forming the European Union is unprecedented in history.
  • term: This change is unprecedented in terms of its procedural and legal complexity and extends unfamiliar areas of law to millions of people.
  • time: This is leading to global warming on a scale unprecedented in modern times.
  • annals: Indeed, such a transformation is unprecedented in the annals of human history.
  • record: Such a signal success was unprecedented in the records of similar undertakings.
  • field: The breadth and scale of the EuroStemCell project are unprecedented in the field of stem cell research.