an attempt to find reasons for behaviour, decisions, etc., especially your own

This is just a convenient rationalization for something you wanted to do anyway. 这只是为你决意要做的事情找个方便的解释罢了。

Entitlement may include rationalization of negative behaviour. 权利可包括消极行为的合理化。

the process of making a company, way of working, etc. more effective, usually by combining or stopping particular activities

We feel the rationalization of manufacturing and distribution under a single management is overdue. 我们认为，在统一管理下的制造和分销的优化是早该进行的。

Fierce competition among large numbers of firms hindered modernization and rationalization of the industry. 大量企业之间的激烈竞争阻碍了该行业的现代化和合理化。