EN

Synonyms for unpremeditated

  • adjective

Most common

random spontaneous impulsive undesigned impromptu unplanned unintentional extemporaneous

All synonyms

Adjective

spontaneous, undesigned, off-hand, random, impulsive, impromptu, unplanned, unintentional, extemporaneous, unstudied, extempore, uncalculated, extemporary, nonpremeditated, designless, ad-lib

Antonyms

premeditated

All antonyms of unpremeditated →

Definitions

  1. adj. 1

    Performed, but not planned or thought out in advance; extemporaneous, but not unintentional.

Choose the right word

Unpremeditated or Impromptu?

Unpremeditated is graver and more formal, denoting absolute want of preparation, but is rather too heavy a word to be applied to such apt, ready utterance as is generally designated by impromptu.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

  • random Tom opened the book at random and started reading.
  • spontaneous Tom and Mary aren't very spontaneous, are they?
  • impulsive Impulsive people are more prone to procrastination.
  • impromptu I called a few friends and we had an impromptu party.
  • unplanned One in six pregnancies in Britain are unplanned.

Popularity over time

Word1850 → 2019Trend
unpremeditatedfalling
randomsteady
spontaneoussteady
impulsiverising
undesignedsteady
imprompturising

Use in printed books, per decade from 1850 to 2019.

By length

6 letters
random2
9 letters
impulsive3, impromptu3, unplanned2, unstudied, extempore
10 letters
undesigned, designless
11 letters
spontaneous4, extemporary
12 letters
uncalculated
13 letters
unintentional5
14 letters
extemporaneous
15 letters
nonpremeditated

The small number after each word is its number of syllables (random2 = 2 syllables).