1.
synonym for bitter, furious, annoyed
2.
synonym for challenging, demanding, strenuous
3.
synonym for isolated, alone, friendless
4.
synonym for issue, complication, obstacle
5.
antonym for selfless, generous, unselfish
6.
antonym for withhold, keep, hoard
7.
antonym for complicated, hard
8.
antonym for dilemma, problem, conundrum
