もない? What does this mean here?

[QuakerBits]

So I'm looking for sentence examples with new vocab, the word being 考える.. that has nothing to do with this.. but it seems to be follow something here that I don't understand.. もない

それは大変おそろしいので、それを考えたく｢もない｣。
They translated it as "It is so dreadful that I don't want to think of it."

I understand the other parts of the sentence, just have no idea what もない is doing.. maybe there's not enough context or something? I know も means also and ない is more than likely ある, so maybe they "also don't want to think of it?"

[yangmuye]

Both clauses have negative senses. So you use も to soften the second negation slightly.
は signals special information, and も ordinary. Both are frequently used with negation.

The も can also mean even. I (don't want to do ..., and I )don't even want to think about it.

[QuakerBits]

oh oh, I was way off(: thanks for the explanation !!

[furrykef]

While "and I don't even want to think about it" is perhaps the more natural translation, I believe it could also be interpreted as "and I don't want to think about it either", with the も being "either".