futile = having no useful result, pointless, a bit of a waste of time so futile to deny means its a waste of time to deny or argue against eg Its futile to deny that the Earth is round or Its futile to deny her anything; she always gets her way in the end.
it is pointless or futile
The Borg's favorite catchphrase is "Resistance is futile."
The Borg
The phrase implicit deny means that something is completely denied unless it has explicit permission. For instance, the traffic in a network.
Mt:10:33: But whosoever shall deny me before men, him will I also deny before my Father which is in heaven.
If by deny you mean refuse, it gets complicated. If the minister is an ordained minister of a religion, AND if conducting the wedding is contrary to the beliefs of the religion, yes, the minister can refuse o conduct the ceremony.
"Moy deny prashol ocheny harasho" is a phrase in Russian that translates to "My day went very well." It expresses a positive sentiment about how someone's day has unfolded. The phrase highlights the speaker's satisfaction and happiness regarding their experiences throughout the day.
Hopeless
Most likely it means that not asking a question is pointless. Hence, it is futile not to ask the question.
It's Borgs from Star Trek the next generation episode "The best of both worlds"
Futile is an adjective.
The opposite is "meaningless" which can mean either pointless, futile, or incomprehensible.