Outgrows can be defined as the phenomenon wherein a person, animal, or plant becomes too big or too old to fit into something that previously accommodated them. Some synonyms for the word outgrows are overgrows, surpasses, overpowers, outpaces, overruns, and overtakes. Overgrows suggest the growth of something much bigger than expected, surpasses means to exceed in size, quality, or ability, overpowers implies a significant and undeniable growth, while outpaces means to go ahead or grow at a faster pace than others. Similarly, overruns suggest a growth that goes beyond limits, while overtakes imply a gradual but steady growth that outmatches something or someone over time. These synonyms come in handy when talking about different scenarios of growth and development.