breaks one back (verb) struggle: labor, work
Sinonime: attentive, cogitative, in brown study,
intent,
introspective,
lost, meditative,
musing,
pensive, pondering,
rapt, reflecting, reflective, ruminative,
speculative, thinking,
thoughtfulAntonime: disdainful, disregarding,
negligent, rejecting,
scornful,
shallow, unreflective