Drought stress (DS) is a major challenge for agriculture, affecting plant distribution and crop yields globally. Plants respond to DS through various physiological, biochemical, and anatomical changes, such as stomatal closure, root growth modifications, and metabolic pathway shifts. However, DS can shorten plant life cycles and reduce yields. The impact of DS on plants depends on factors like soil water gradient, precipitation, plant species, and developmental stage. This review highlights recent advances in genetic engineering, breeding, and agronomic approaches to improve drought tolerance and crop productivity. DS is a critical environmental constraint caused by factors like increased light intensity, temperature fluctuations, and rainfall irregularities, which affect plant morphology and disrupt biochemical and physiological functions. Stomatal closure is an initial response to DS, triggering biochemical and physiological adjustments that enhance plant defense mechanisms. Plants have evolved complex resistance strategies, including biochemical, physiological, and morphological traits that vary by species. These responses are crucial for meeting global food security needs, which are threatened by climate change and reduced arable land. Economic losses from drought have increased to $29 billion, with projections of a 50% decrease in freshwater availability and a doubling of agricultural water demand by 2050. Drought causes more annual crop yield reductions than all pathogens combined, emphasizing the need for climate-resilient crops. This review explores recent advances in molecular, breeding, and agronomic approaches to enhance drought tolerance and provide long-term solutions for sustainable agriculture. DS affects plant growth and yield at various developmental stages, with different plants adopting strategies to cope with water scarcity. Studies show that severe DS significantly impacts plant morphology and physiology, reducing plant height, grain yield, and other growth parameters. Yield losses under DS range from 30 to 90%, depending on crop species. Drought-induced yield loss risk is projected to increase, with extreme drought events affecting a significant portion of maize, wheat, and rice crops. DS disrupts cell division and expansion, reducing plant growth and yield. Optimized water use efficiency is essential for maximizing grain filling duration and preventing crop failure, relying on coordinated water transport and physiological responses like stomatal closure. Drought-induced stomatal closure is a recurring phenomenon in long-lived trees, affecting growth recovery. In faba bean, DS reduces plant growth and yield, highlighting the need for drought-tolerant crops. This review underscores the importance of developing drought-resistant crops to ensure food security in the face of climate change.Drought stress (DS) is a major challenge for agriculture, affecting plant distribution and crop yields globally. Plants respond to DS through various physiological, biochemical, and anatomical changes, such as stomatal closure, root growth modifications, and metabolic pathway shifts. However, DS can shorten plant life cycles and reduce yields. The impact of DS on plants depends on factors like soil water gradient, precipitation, plant species, and developmental stage. This review highlights recent advances in genetic engineering, breeding, and agronomic approaches to improve drought tolerance and crop productivity. DS is a critical environmental constraint caused by factors like increased light intensity, temperature fluctuations, and rainfall irregularities, which affect plant morphology and disrupt biochemical and physiological functions. Stomatal closure is an initial response to DS, triggering biochemical and physiological adjustments that enhance plant defense mechanisms. Plants have evolved complex resistance strategies, including biochemical, physiological, and morphological traits that vary by species. These responses are crucial for meeting global food security needs, which are threatened by climate change and reduced arable land. Economic losses from drought have increased to $29 billion, with projections of a 50% decrease in freshwater availability and a doubling of agricultural water demand by 2050. Drought causes more annual crop yield reductions than all pathogens combined, emphasizing the need for climate-resilient crops. This review explores recent advances in molecular, breeding, and agronomic approaches to enhance drought tolerance and provide long-term solutions for sustainable agriculture. DS affects plant growth and yield at various developmental stages, with different plants adopting strategies to cope with water scarcity. Studies show that severe DS significantly impacts plant morphology and physiology, reducing plant height, grain yield, and other growth parameters. Yield losses under DS range from 30 to 90%, depending on crop species. Drought-induced yield loss risk is projected to increase, with extreme drought events affecting a significant portion of maize, wheat, and rice crops. DS disrupts cell division and expansion, reducing plant growth and yield. Optimized water use efficiency is essential for maximizing grain filling duration and preventing crop failure, relying on coordinated water transport and physiological responses like stomatal closure. Drought-induced stomatal closure is a recurring phenomenon in long-lived trees, affecting growth recovery. In faba bean, DS reduces plant growth and yield, highlighting the need for drought-tolerant crops. This review underscores the importance of developing drought-resistant crops to ensure food security in the face of climate change.