Synonyms, Thesaurus & Antonyms of 'unpremeditated'
Princeton's WordNet
1. (adj)unpremeditated not prepared or planned in advance Antonyms: aforethought(ip), plotted, planned, premeditated
2. (adj)unpremeditated not premeditated Antonyms: plotted, planned, premeditated, aforethought(ip)
Synonyms, Thesaurus & Antonyms of 'unpremeditated'
English Synonyms and Antonyms
1. unpremeditated Extemporaneous, originally signifying of or from the time or occasion, has come to mean done or made with but little (if any) preparation, and is now chiefly applied to addresses of which the Synonyms: extemporaneous, extemporary, impromptu, offhand, extempore, improvised, unpremeditated Antonyms: elaborated, premeditated, prepared, read, recited, studied, written
Synonyms for unpremeditated 
