You use gossamer to indicate that something is very light, thin, or delicate.
例句
...the daring gossamer dresses of sheer black lace.完全以黑色蕾絲為材質的樣式大膽的輕薄衣裙
英漢詞典釋義
adj.
輕而薄的, 薄弱的; 虛無飄渺的, 幻影似的
a gossamer justification站不住腳的辯解
英英詞典釋義
Noun
1. a gauze fabric with an extremely fine texture
2. filaments from a cobweb
Adjective
1. characterized by unusual lightness and delicacy;
"this smallest and most ethereal of birds""gossamer shading through his playing"
2. so thin as to transmit light;
"a hat with a diaphanous veil""filmy wings of a moth""gauzy clouds of dandelion down""gossamer cobwebs""sheer silk stockings""transparent chiffon""vaporous silks"