I like that meaning the best.

After reviewing four meanings from wiki, I picked my preference with the philosophical perspective. Mainly because I feel more connected towards the philosophical aspect. Nihilism is to life  ? Before our departure from the world, what’s our last thoughts? What do we want to do in life which will not make us live in regrets?

Further detailed re-reading allowed me a peek into the world of nihilism – looks like it was created a long time ago and overall, it portrays negativity and is associated usually with terrorism & destruction on top of denial of real existence.

An extract from wiki as seen below…

1. a complete denial of all established authority and institutions
2. philosophy an extreme form of scepticism that systematically rejects all values, belief in existence, the possibility of communication, etc
3. a revolutionary doctrine of destruction for its own sake
4. the practice or promulgation of terrorism