Marginal/ˈmɑːrdʒɪnl/ Definition 1 of 4Pro Tip 1/2Barely Sufficient Used when something is just enough to meet the requirements or needs. His effort on the project was marginal at best. Pro Tip 2/2Negative Connotation 'Marginal' often suggests a lack of significance or effort. Her contribution to the group work was marginal.