Definition of idiosyncratical in English:

idiosyncratical

(also ideosyncratical)

adjective

rare
  • Idiosyncratic.

Origin

Late 17th century; earliest use found in Everard Maynwaring (b. ?1628), physician. From idio- + Hellenistic Greek συγκρατικός + -al, after idiosyncrasy. Earlier currency is perhaps implied by idiosyncratically.

Pronunciation

idiosyncratical

/ˌɪdɪə(ʊ)sɪŋˈkratɪkl/