理

rationalism

Linguistics

passive vocabulary

theoretical air fuel ratio

Philosophy

principle of sufficient reason

perfect vacuum

Biology

theoretical biology

hairdresser; beautician; cosmetician

Abbreviation

woman in STEM (science, technology, engineering, mathematics); female scientist

Linguistics; E.g. 林 or 森

kanji composed entirely of duplicate radicals

barbershop; barber shop

theoretical linguistics

physical (in science, medicine, etc.)

Law

Barbers Act

natural scientist

Obsolete term

philosopher

hairdressing business

Adverb (fukushi)

theoretically; in theory

Nouns which may take the genitive case particle 'no'

theoretical

science classroom; (school) science lab

Organization name

Riso Kagaku Corporation

reason; logic

Rare term

barbershop; barber shop

Rare term

to lose an argument despite being in the right; to have the right on one's side, yet succumb to another

Obsolete term

political economy

Adjectival nouns or quasi-adjectives (keiyodoshi); Common noun

unreasonable; unnatural; unjustifiable

Adjectival nouns or quasi-adjectives (keiyodoshi); Common noun

impossible

Adjectival nouns or quasi-adjectives (keiyodoshi); Common noun; Oft. adverbially as 〜に

forcible; forced; compulsory

Adjectival nouns or quasi-adjectives (keiyodoshi)

excessive (work, etc.); immoderate

Noun or participle which takes the aux. verb suru; Intransitive verb

to work too hard; to try too hard

Colloquial; Interjection

no way; not a chance; never; dream on

Nouns which may take the genitive case particle 'no'; Mathematics

irrational

cooking; cookery; cuisine; food; dish

dealing with (skillfully); handling (well); managing