insubstantial
/ˌɪnsəbˈstænʃəl/adjective
1- lacking strength and solidity不牢固的, 不坚实的：
the huts are relatively few and insubstantial
小屋相对较少, 亦不牢固
insubstantial evidence.
不过硬的证据。
1.1
- not solid or real; imaginary非实体的, 非真实的; 虚构的：
the flickering light made her face seem insubstantial.
闪烁的灯光使她的脸庞显得亦真亦幻。
派生词
insubstantiality
nouninsubstantially
adverb词源
early 17th cent.: from late Latin insubstantialis, from in- 'not' + substantialis （see SUBSTANTIAL）.