1 especially British EnglishMI
unable to see objects clearly unless they are very close [= nearsighted American English; ≠ long-sighted]
not considering the possible effects in the future of something that seems good now - used to show disapproval [≠ far-sighted]:
a short-sighted policy of reducing investment in training
—short-sightedness noun [uncountable]
Thanks to the government's short-sightedness, our hospitals are very short of cash.