緩急車

かんきゅうしゃ

brake van, guard's van, caboose

緩急自在

かんきゅうじざい

varying the tempo or speed (of something) at will

緩急記号

かんきゅうきごう

tempo indication, tempo marking, (a) tempo

一旦緩急

いったんかんきゅう

(when) danger threatens, should an emergency occur

緩緩

ゆるゆる

very loose, slowly, leisurely

急

きゅう

urgent, sudden, abrupt

緩手

かんしゅ

ineffective or wasted move (in Go or Shoji)

緩目

ゆるめ

somewhat loose

弛緩

しかん ちかん

relaxation (e.g. of muscles), becoming flaccid

緩む

ゆるむ

to become loose, to slacken (e.g. rope)

緩い

ゆるい

loose

緩衝

かんしょう

buffered

緩怠

かんたい

laxity, negligence

緩か

loose; slack

緩歩

slow walk

緩速

かんそく

slow speed

緩和

かんわ

relief, mitigation, alleviation, relaxation, softening

緩キャラ

ゆるキャラ

costumed mascot character (oft. devised for PR purposes by local governments, government departments, etc.)

緩行

かんこう

going slowly