"a flimsy table" "flimsy construction"
"unconvincing argument" "as unconvincing as a forced smile"
"slight evidence" "a tenuous argument" "a thin plot"
The walls were flimsyspart frosted glass and part plywood.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)