Waiver by Conduct Law and Legal Definition
Waiver by conduct refers to the abandonment of a right that is implied from a person's conduct. It does not need a written expression. For example, when a defendant has been warned that s/he will lose his/her attorney if s/he engages in dilatory tactics, any misconduct thereafter may be treated as an implied request to proceed pro se and, thus, as a waiver of the right to counsel.
However, in the U.S., the Courts are reluctant to imply waivers of fundamental constitutional rights by mere conduct.