Taminiaux was born in Seneffe. He studied law and philosophy at the Katholieke Universiteit, Leuven. He became a professor at Boston College in Chestnut Hill, Massachusetts, United States in 1989. His research interests were on phenomenology, aesthetics, political philosophy and contemporary continental philosophy. In 1977, he was awarded the Francqui Prize for his work on the history of philosophy.
Taminiaux died on 7 May 2019, at the age of 90.