不即不離

ふそくふり

neutral, noncommittal

相即

そうそく

being closely related, being inseparable

不離

ふり

inseparability

不側不離

ふそくふり ふがわふり

close relationship

即即

そくそく

immediate sex (without taking a shower first)

不相応

ふそうおう

unsuited, inappropriate, improper, undeserved

離散位相

りさんいそー

discrete topology

分離不安

ぶんりふあん

separation anxiety

即

そく

instantly, immediately, at once

不倫相手

ふりんあいて

person with whom one is having an illicit love affair

相互不信

そうごふしん

mutual distrust

分不相応

ぶんふそうおう

beyond one's means or position

即決即断

そっけつそくだん

prompt decision and prompt execution, make swift decisions and take quick actions

即断即決

そくだんそっけつ

making a swift decision, making immediate decisions and taking quick actions

分離不定詞

ぶんりふていし

split infinitive

相反則不軌

そうはんそくふき

reciprocity failure

身分不相応

みぶんふそうおう

beyond one's means or position, inappropriate to one's lot in life

即題

そくだい

subjects for improvisation, subjects for improvization

即吟

そくぎん

improvisation (of a poem), improvization