The manager said the new software was too immature to launch before the holiday season.

經理表示，新軟體還太不成熟，無法在假期旺季前上市。

Some board members felt the startup's market was still immature and risky for investment.

部分董事認為這家新創公司的市場仍不成熟，投資風險偏高。

His immature reaction to the customer's complaint led to a formal warning from his supervisor.

他對顧客抱怨的幼稚反應，讓主管對他提出正式警告。