facile
adjective uk/ˈfæs.aɪl/ us/ˈfæs.əl/
（言语或理论）轻率的，未经深思熟虑的
A facile remark or theory is too simple and has not been thought about enough.
a facile explanation 信口开河的解释
We must avoid facile recriminations about who was to blame. 我们必须避免随意指责、怪罪别人。