The Whites put in a below-par performance as they lost further ground on the automatic promotion places.
The Londoners enjoyed the better of the chances with Conor Washington wasting great chances either side of the break to snatch the win.
The Whites failed to create any clear cut chances with dangerman Chris Wood kept silent throughout.
A frustrated Monk said: “There are no excuses from us, we didn’t do enough to win the game.
“We were below the standards, especially at Elland road, of what we usually set.
“The positives are that we kept a clean sheet and we got a point .
“It extends our unbeaten run. We did not hit the standards, but it was not through a lack of effort.
“This group will always respond, we are all in it together and will win and lose together. You always get ups and down.
“We are always great at responding and we will do that in the coming games. We will push to get back to the levels we expect.”
“We have nine games left and we have to have a better level next week.
“We were trying to push in the closing stages and you can see that the commitment is there. “Other teams around us lost and this is another useful point.”