불가결하다

Successful in producing a desired or intended result; effective.

An act of trying to do something, especially something new or difficult.

Working hard and carefully; diligent. It describes a person who consistently puts in effort and is dedicated to their work or studies.

To be enough or adequate in amount, quality, or degree for a particular purpose.

Including all or nearly all elements or aspects of something; wide-ranging or comprehensive.

A favorable time or set of circumstances for doing something; an opportunity.

To be unavoidable or inevitable. It is used to describe situations where a certain outcome cannot be prevented due to circumstances.

To persistently aim for or try to reach a goal, ideal, or value. It implies a long-term endeavor toward something abstract like happiness or profit.

A state in which different things are in the correct or equal proportion. It refers to stability and harmony between opposing forces or elements.

A length or portion of time during which something happens or exists.