This article makes the case for the applicability of the doctrine of implied amendments to the_x000D_ Constitution of Singapore. The first part of this article tracks the origins and judicial development of the doctrine of implied amendments across the common law jurisdictions of Australia, Sri Lanka and Jamaica. The second part analyses whether the doctrine of implied amendments is applicable within the constitutional paradigm of Singapore based on a plain, textualist approach towards the Singapore Constitution. It also evaluates and analyses the historical academic and judicial treatment of the doctrine in Singapore, if any. The final part explores the normative justifications for adopting the doctrine of implied amendments, namely that it upholds the 'flexible constitutionalism' that characterises Singapore's constitutional system, and best weds the legal nature of the Westminster system of parliamentary democracy and sovereignty to the concept of a legal system predicated on constitutional supremacy.