Meaning of TRIVIAL in English

TRIVIAL

[adjective]Things that are trivial have little value or importance.A man who was involved in an apparently trivial dispute in a pub was later hacked to death by a gang of ten men.I don't know why he gets so upset about something that is utterly trivial.It is seemingly trivial things like effective communication that enable an office to operate efficiently.Sexual harassment in the workplace is not a trivial matter.She just dismissed my problem as too trivial to be worth discussing.A trivial problem is one that is easy to solve.Getting computers to understand human language is not a trivial problem.The discovery of penicillin made curing infections suddenly seem trivial.

Cambridge English vocab.      Кембриджский английский словарь.