adj.轻浮的，无聊的，愚蠢的，可笑的，不严肃的

He's known for his frivolous spending habits, often buying expensive toys without a second thought.
他以挥霍无度著称，常常不假思索就买下昂贵的玩具。
The lawsuit was dismissed as frivolous by the judge due to lack of substantial evidence.
由于缺乏实质性证据，法官驳回了这个被认为是轻率的诉讼。
Her constant frivolous chatter irritated everyone in the office.
她不停地讲些无聊的话，让办公室里的每一个人都感到恼火。
The fashion show was criticized for promoting frivolous consumerism instead of practical clothing designs.
这场时装秀因推崇浮华的消费主义而非实用的服装设计而受到批评。
He tried to add a touch of humor to the serious meeting, but his frivolous joke fell flat.
他试图在严肃的会议中加入一点幽默，但他的轻佻笑话并未引起共鸣。
The celebrity's frivolous lifestyle, filled with parties and luxury, attracted both admiration and criticism.
这位名人的生活充满了派对和奢华，这种轻浮的生活方式既吸引了羡慕也招来了批评。
Don't waste your time on such frivolous matters when there are more important issues at hand.
当手头有更重要的问题时，不要把时间浪费在这种琐碎的事情上。
The movie was criticized for its frivolous portrayal of serious social issues, lacking depth and sensitivity.
这部电影因其对严重社会问题的轻率描绘而受到批评，缺乏深度和敏感性。
She accused him of making frivolous promises that he never intended to keep.
她指责他做出从不打算兑现的轻率承诺。
In a world full of challenges, indulging in frivolous entertainment can sometimes be a necessary escape.
在充满挑战的世界里，沉迷于一些肤浅的娱乐有时也是一种必要的逃避。