crucial
It is crucially important that I have a good relationship with my senior management team.
We will give you the best possible debt advice. And crucially, our advice is free.
He admitted his force's investigation of the case was "crucially flawed".
Crucially for the White House, backing for the decision has not changed.

SMART Vocabulary: related words and phrases

Very important or urgent
all-important
at all costsidiom
be a matter of life and/or deathidiom
cardinally
chief
imperative
last but not leastidiom
leading
life-altering
life-and-death
life-changing
overriding
primary
prime
principally
prior
prized
seminal
tectonic
weighty