Read the passage and accordingly, fill in the blank:
There stood at the edge of the road an oak. Probably ten times the age of the birches that formed the bulk of the forest. It was ten times as thick and twice as tall as they are. It was an enormous tree, double a man's span with ancient scars where branches had long ago been lopped off and bark stripped away. With huge limbs sprawling unsymmetrically, with gnarled hands and fingers, it stood, an aged monster angry and scornful, among the smiling birch trees. This oak alone refused to yield to the season's spell, spurning both spring and sunshine.
"Spring, and love, and happiness", this oak seemed to say, "Are you not weary of the same stupid, meaningless late? Always the same old delusion. There is no spring, no happiness! Look at those strangled lifeless fir trees, everlastingly the same and look at me too sticking out broken excoriated fingers, from my back and my sides, where they grew, just as they grew; here I stand, and have no faith in your hopes and illusions".
In the phrase "strangled, lifeless fir trees", "strangled" suggests an appearance that is __________.