This paper deals with the study of particle shape effect in grain growth inhibition. As it is difficult to quantify analytically such effect during growth kinetic because of particle distribution variation, computer simulation was implemented. Monte Carlo simulation was chosen to follow grain growth in presence of incoherent particles varying their size, fraction and morphology. Results suggested a correlated effect between particle eccentricity and fraction to control growth inhibition. Moreover, particle size controlled better growth kinetic, as it was possible to inhibit particle shape effect by giving a size advantage to particles having a high symmetry.