This research paper critically examines different solutions often that are put forward in the literature as sustainable practices and unmask the limits and hidden drawbacks challenging their claims of sustainability. Despite widespread use and promotion, many of these solutions fail to address deeper environmental, social, and economic impacts when scrutinized comprehensively. This paper has identified key areas in which so-called sustainable practices fall short: resource depletion, long-term ecological balance, socioeconomic inequality, and unintended environmental consequences. Some examples explored in this study to reveal their hidden complexities and trade-offs are renewable energy sources, biodegradable materials, agriculture, transportation, information technology, waste management, and green buildings. In this paper, the critical review is done with the intent to build a greater understanding of what true sustainability constitutes and to help in the framing of more valid and truly sustainable practices. Our paper aims at comprehensive sustainable solutions in consideration of environmental, economic, and social dimensions.