The paper introduces a novel technique called Transient Stimulated Raman Scattering (T-SRS) spectroscopy, which overcomes the limitations of traditional stimulated Raman scattering (SRS) imaging methods. T-SRS is a time-domain strategy that bypasses the trade-off between spectral resolution and sensitivity, achieved by encoding vibrational oscillations in the stimulated Raman loss (SRL) signal through femtosecond pulse-pair sequence excited vibrational wave packet interference. This approach allows for the acquisition of Raman spectra with natural-linewidth-limit spectral line shapes, laser-bandwidth-determined spectral ranges, and improved sensitivity. The authors demonstrate the effectiveness of T-SRS by achieving sub-mM sensitivity with ~150-fs laser pulses and high-speed time-delay scanning for hyperspectral SRS imaging of live-cell metabolism and high-density multiplexed imaging. The technique also enables high-density barcoding with spectral spacing as fine as ~12 cm⁻¹, making it suitable for advanced Raman imaging applications.The paper introduces a novel technique called Transient Stimulated Raman Scattering (T-SRS) spectroscopy, which overcomes the limitations of traditional stimulated Raman scattering (SRS) imaging methods. T-SRS is a time-domain strategy that bypasses the trade-off between spectral resolution and sensitivity, achieved by encoding vibrational oscillations in the stimulated Raman loss (SRL) signal through femtosecond pulse-pair sequence excited vibrational wave packet interference. This approach allows for the acquisition of Raman spectra with natural-linewidth-limit spectral line shapes, laser-bandwidth-determined spectral ranges, and improved sensitivity. The authors demonstrate the effectiveness of T-SRS by achieving sub-mM sensitivity with ~150-fs laser pulses and high-speed time-delay scanning for hyperspectral SRS imaging of live-cell metabolism and high-density multiplexed imaging. The technique also enables high-density barcoding with spectral spacing as fine as ~12 cm⁻¹, making it suitable for advanced Raman imaging applications.