不

having no fixed days off; having no regular closing days; having no regular holidays

unearned

lawlessness; violation of customs

sad occasion (esp. a funeral)

inactivity

Medicine

refractory

Mahjong

not fishing; needing more than one tile to win

disapproval; rejection

Orig. from hanafuda

acting on an impulse; doing something without considering the consequences

Word usually written using kana alone

loose morals (e.g. of a geisha); easy virtue

insolubility

discordance; discrepancy (e.g. statistical); conflict; incongruity; inconsistency; mismatch

faithlessness; insincerity

impiety; irreverence

excess or deficiency

no liking for; no interest in

nondelivery

nonarrival; nondelivery

in no hurry; nonessential (industry)

imprudence; indiscretion

uncommon; outstanding

nonrestraint

Medicine

female infertility; inability to carry a pregnancy to full term

Mathematics

indeterminate

unskillfulness