essential in Russian
essential in Russian
необходи́мый
Necessary.
ва́жный
Very important; of high importance.
суще́ственный
Very important; of high importance.
ба́зовый
Being in the basic form; showing its essence.
основно́й
Being in the basic form; showing its essence.
фундамента́льный
Being in the basic form; showing its essence.