) KEY ADJECTIVE:
- Unexpectedly sudden: an abrupt change in the weather.
- Surprisingly curt; brusque: an abrupt answer made in anger.
- Touching on one subject after another with sudden transitions: abrupt prose.
- Steeply inclined. See Synonyms at steep1.
- Botany Terminating suddenly rather than gradually; truncate: an abrupt leaf.
, past participle of abrumpere
, to break off
; see ab-1
, to break
; see reup-
in Indo-European rootsOTHER FORMS:a·bruptly(Adverb)