• Anything done by the practitioner in the pursuit of his profession which would reasonably be regarded as disgraceful or dishonourable by his professional brethren of good repute and competency. Unprofessional conduct is not limited to conduct which is 'disgraceful or dishonourable' in the ordinary sense of those terms. It includes, we think, conduct which may reasonably be held to violate or fall short of, to a substantial degree. the standards of professional conduct observed or approved by members of the profession of good repute and competency.
• Re A Practitioner of the Supreme Court (1927) SASR 58, 60

unsatisfactory professional conduct involving substantial or consistent failure to reach or keep a reasonable standard

• When conduct falls short of the standard of competence and diligence that a member of the public is entitled to expect of a reasonably competent Australian legal practitioner.
• LPA s 418

conduct of the practitioner, involved with practice OR OTHERWISE, that would find the practitioner to be not a fit and proper person.

• No priors
• community and professional reputation
• cooperation with disciplinary authorities
• willingness to accept misconduct was committed
• demeanour of the practitioner through proceedings
  mental illness or substance abuse connected to the misconduct

See Kirby J in matters to consider for reinstatement to the roll (Study guide)

Matter resolved informally and/or advice given: no further action