|välttämätön englanniksi||indispensable, essential, imperative, necessary, must-have, obligatory, obligate|
: The law was moral and indispensable. -Bp. Burnet
: An indispensable component of a heart-healthy diet.
: Don’t mind him being grumpy. That’s the essential Fred.
*: Is it true, that thou art but a name, / And no essential thing?
: It is imperative that you come here right now.
: imperative orders
*: The suits of kings are imperative.
: The verbs in sentences like "Do it!" and "Say what you like!" are in the imperative.
: Visiting Berlin is an imperative.
*: Tis necessary he should die.
*: A certain kind of temper is necessary to the pleasure and quiet of our minds.
*: Death, a necessary end, / Will come when it will come.
: Whether man is a necessary or a free agent is a question much discussed.
: an obligatory promise
*: ... if he speak the words of an oath in a strange language, thinking they signify something else, or if he spake in his sleep, or deliration, or distraction, it is no oath, and so not obligatory.
: an obligate parasite; an obligate anaerobe.