vital

As a noun biostatistics

is (biology|mathematics) the application of statistics to the study and analysis of biological and medical data.

As an adjective vital is

relating to, or characteristic of life.

Pressing is a synonym of vital.

As adjectives the difference between pressing and vital

is that pressing is needing urgent attention while vital is relating to, or characteristic of life.

As a noun pressing

is the application of pressure by a press or other means.

As a verb pressing

is .

As adjectives the difference between vital and momentous

is that vital is relating to, or characteristic of life while momentous is outstanding in importance, of great consequence.

Vital is a related term of needed.

As adjectives the difference between vital and needed

is that vital is relating to, or characteristic of life while needed is necessary; being needed.

As a verb needed is

(need).

As adjectives the difference between significant and vital

is that significant is signifying something; carrying meaning while vital is relating to, or characteristic of life.

As a noun significant

is that which has significance; a sign; a token; a symbol.

Vital is a related term of notable.

As adjectives the difference between vital and notable

is that vital is relating to, or characteristic of life while notable is (obsolete) useful; profitable or notable can be worthy of notice; remarkable; memorable; noted or distinguished.

As a noun notable is

a person or thing of distinction.

As a verb rejuvenated

is (rejuvenate).

As an adjective vital is

relating to, or characteristic of life.

As adjectives the difference between vital and central

is that vital is relating to, or characteristic of life while central is being in the centre.

Vital is a related term of forceful.

As adjectives the difference between vital and forceful

is that vital is relating to, or characteristic of life while forceful is with assertive force; powerful.

Chief is a related term of vital.

As adjectives the difference between chief and vital

is that chief is primary; principal while vital is relating to, or characteristic of life.

As a noun chief

is (senseid)a leader or head of a group of people, organisation, etc.