substantial

The word substantial carries weight—literally and figuratively. At its core, it means considerable in size, amount, or degree. Imagine building a house; you wouldn't want flimsy materials, but rather substantial beams and foundations that can withstand the elements. This is where the idea of "solid" comes into play.

But substantial isn't just about physical things. It also describes something important, large, or meaningful in a broader sense. A substantial contribution to a charity means a large donation. A substantial change in policy is a change big enough to have real effects. A person may make substantial progress in learning English, meaning clear and important progress, not just a small improvement.

The context often shapes the nuance. In formal or academic writing, substantial often points to an amount or effect that is large and important. In everyday conversation, it can describe anything from a substantial meal to a substantial amount of money. It is a word for things that are not slight or superficial; they have weight, depth, or clear importance. Think of a substantial meal after a long hike—it's not just a bite to eat, but something filling and satisfying.

So, when you want to emphasize the importance, size, or solidity of something, reach for the word substantial. It's more than just "big"—it implies quality and consequence.