Innumerable/ɪˈnuːmərəbl/ Definition 1 of 1Pro Tip 1/3Unquantifiable Amount Use 'innumerable' when it's impossible or impractical to quantify something due to its vastness. She had innumerable reasons for her decision. Pro Tip 2/3Exaggeration Effect 'Innumerable' can be used to exaggerate the size or extent of something for effect. He's told the story an innumerable number of times. Pro Tip 3/3Emphasize Overwhelm 'Innumerable' can imply feeling overwhelmed by the sheer amount of something. She faced innumerable challenges along the way.