upheaval = a great change, especially causing or involving much difficulty, activity, or trouble

I'm not sure it's worth the upheaval of moving to gain just a little more space

Yesterday's coup brought further upheaval to a country already struggling with famine

arbitrary = based on chance rather than being planned or based on reason

arbitrary decision-making

Did you have a reason for choosing your destination or was it arbitrary?

infuse = to fill something or someone with emotions or quality

The pulling down the Berlin Wall infused the world with optimism

The arrival of a group of friends on Saturday infused new life into the weekend

fume = to be very angry

The whole episode left me fuming at the injustice of it all