1 Abstract art involves shapes and colours and not images of real things or people. -- astratto
abstract paintings dipinti astratti
2 (of a noun) referring to something which exists as an idea and which is not physically real -- astratto
3 (of painting, sculpture etc) concerned with colour/color, shape, texture etc rather than showing things as they really appear -- astratto
an abstract painting.
4 a painting, sculpture etc concerned with colour/color, shape, texture etc rather than showing things as they really appear -- astratto
She usually paints abstracts.
5 a summary (of a book, article etc) -- riassunto
All articles must be accompanied by an abstract of no more than 250 words.