oppressed, appressed

Oppressed or oppressed describes someone who has been burdened unjustly, or weighed down by harsh authority--
The minister warned the king that his oppressed subjects might revolt.
The peasants were oppressed by heavy taxes, but they didn't dare to complain.

Appressed or appressed describes something that fits closely; a thing that fits snugly against another thing--
These two pieces should be cut so that they can be appressed, with no gap between them.
These were appressed until they warped in the rain; we'll have to make new ones.

Now that you know that, you can say--
"He felt oppressed, as an appressed block of wood, with no room to move or turn about."

Note--"a pressed" ( two words ) describes one item ( a ) that has been ironed ( pressed ) or flattened by a weight, as a leaf or flower--
She found a pressed flower in an old book.
He needs a pressed shirt; these are all wrinkled. [ He needs a shirt that has been pressed.]
He needs a shirt pressed; do you have time? [ He has a wrinkled shirt he wants ironed. ]