noun, adjectival noun or quasi-adjective

Archaism.
  1. incivility, impoliteness.

Variations

Pronunciation Kanji Kana Is Common
不挨拶 ぶあいさつ
無挨拶 ぶあいさつ

Contained Kanji Breakdown

negative, non-, bad
 (4th, N4)
cliff (厂) variant
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク うらな.う うらない (Kentei Pre-1)
approach, draw near, push open
アイ ひら.く (11th)
hand, hand radical (no. 64)
シュ
sentence particle
 (Kentei 1)
I, myself, katakana mu radical (no. 28)
シ ボウ ム (Kentei 1)
dart, arrow
や シ (2nd, N1)
person(人) variant
large, big
ダイ おお- た (1st, N5)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
person
ひと ニン ジン (1st, N5)
be imminent, draw close
サツ せま.る (11th)
hand, hand radical (no. 64)
シュ
curving river radical (no.47)
セン かわ (Kentei 1)
ku radical
river
climax, arrive, proceed
シ いた.る のぶ (6th, N1)
the fore-arm(厷) variant
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
I, myself, katakana mu radical (no. 28)
シ ボウ ム (Kentei 1)
soil, earth, ground
ド つち は (1st, N5)
evening
ゆう セキ ゆ (1st, N4)