from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Law Capable of managing one's own affairs.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having the right and the capability to manage one's own affairs

from The Century Dictionary and Cyclopedia

  • In Roman law, the status of any one who was not subject to the patria potestas.
  • In modern legal usage, of full age and capacity, and legally capable of managing one's own affairs, as distinguished from infants, lunatics, and woman under common-law disqualifications of coverture.


Latin suī iūris : suī, of one's own + iūris, genitive of iūs, right, law.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin of one's own right (Wiktionary)


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  • Of full age and (legal) capacity.

    November 3, 2007