Spurs held a 2-0 advantage heading into the second leg, which they eventually lost 3-0.
"They [Dinamo] left sweat, energy, blood. In the end they left even tears of happiness," Mourinho told BT Sport. "They were very humble and committed. I have to praise them.
"On the other side, my team - I repeat, my team - didn't look like it was playing an important match. If for any one of them it is not important, for me it is.
"I am disappointed for a difference of attitude of one team to another. I feel sorry that my team is the team that didn't bring to the game not just the basics of football but the basics of life, which is to respect our jobs and to give everything.
"I can only apologise to the Tottenham supporters. I hope they feel the same way I feel. Today is live or die - and in this moment, we die."
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!