緊張関係

きんちょうかんけい

noun

•

tense relationship, tense relations, strained relations, strained ties, tension

緊	tense, solid, hard, reliable, tight
張	lengthen, counter for bows & stringed instruments, stretch, spread, put up (tent)
関	connection, barrier, gateway, involve, concerning
係	person in charge, connection, duty, concern oneself