n.a genre of French painting characterized by bright flat shapes and symbolic treatments of abstract ideas
英汉双解大词典
synthetism/ˈsɪnθɪˌtɪzəm/
1.
N（名词）
the symbolism of Gauguin and the Nabis, who reacted against the impressionists and realists by seeking to produce brightly coloured abstractions of their inner experience 综合主义