noun, noun which may take the genitive case particle 'no'
deformity; disability; physical defect
Refers to a physical deformity or disability. This sense is sensitive; it can be considered blunt or outdated in modern usage. More neutral terms like 障害 (しょうがい) are often preferred.
その古い書物には、生まれつきの不具についての記述がある。
That old book contains descriptions of congenital deformities.
noun, noun which may take the genitive case particle 'no'
closing phrase in a letter; word written at the end of a letter
A set phrase used at the end of a letter, similar to 'with kind regards' or 'sincerely'. It is a formal, somewhat old-fashioned epistolary convention.
手紙の最後に「不具」と書いて結んだ。
I closed the letter by writing 'fugu' at the end.