What are some words with negative connotations found in Dulce Et Decorum Est?

Because this is such a negative poem, there are all sorts
of words in it that have negative connotations.  Together, the words (as well as the
overall action of the poem) make us feel very negative emotions towards the war and
towards the havoc that it wreaks on the young men who are fighting in
it.

If you look at the first stanza, there are all sorts of
negative words.   We see the words "beggars," "hags," "sludge," "haunting,"blood-shod,"
"lame," "blind."

The second stanza has fewer of these words
-- I see "drowning," "choking," and "guttering."

But then
you look at the third stanza and it is full of negative words.  For example, "obscene,"
"smothering," "writhing," "vile," and "incurable."

When you
put all of these together, you have a very horrible feeling towards this
war.