さ障

(1)something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan"

(2)行く手をふさいでいる重要でないもので、回避するなり乗り越えるなりしなくてはならない

(3)any obstruction that impedes or is burdensome

(4)妨げるか、または負担となっているどのような障害でも