A novel strategy for the rapid synthesis of high-entropy carbide particles is proposed that involves the transformation of multicomponent intermetallic intermediates to multicomponent carbides (high-entropy carbide precursors). (Ti0.25V0.25Nb0.25Ta0.25)C nanoparticles with a uniform solute distribution were successfully synthesized in an Al matrix by heating Al-Ti-V-Nb-Ta-C powder mixtures at 1500 degrees C for 10 minutes. The multicomponent aluminide intermediates led to the rapid formation of multicomponent carbides during heating to 1100 degrees C, which transformed into a high-entropy solid solution during heating to 1500 degrees C. We developed a new rapid approach for the synthesis of high-entropy ceramic particles.