premeditated

[pri-med-i-tey-tid] /prɪˈmɛd ɪˌteɪ tɪd/
adjective
1.
done deliberately; planned in advance:
a premeditated murder.
Origin
1580-90; pre- + meditate + -ed2
Related forms
premeditatedly, adverb
unpremeditated, adjective
Examples from the web for unpremeditated
  • There is scarcely one poem by him which is felt to be an outburst of unpremeditated, careless lyric rapture.
  • They have all the charm of unpremeditated and unguarded compositions.
British Dictionary definitions for unpremeditated

unpremeditated

/ˌʌnprɪˈmɛdɪˌteɪtɪd/
adjective
1.
not planned beforehand; spontaneous
Derived Forms
unpremeditatedly, adverb
unpremeditation, noun
Word Origin and History for unpremeditated
adj.

1590s, from un- (1) "not" + past participle of premeditate.