I am preparing for the IELTS. So I am learning to use high-level words as much as possible.

Consider this

the infrastructure for e-commerce is so extensive that almost everything I need in everyday life can now be had at the tip of your fingers with a click

Does this one pretty much mean the same thing?

the infrastructure for e-commerce is so profound that ...

the word "profound" is a synonym for "extensive", though the Meaning of profound on Cambridge Dictionary seems more about feelings.

felt or experienced very strongly or in an extreme way

  • 1
    This is purely a matter of whether you want to use a two-dimensional surface metaphor or a three-dimensional depth metaphor. There's no other significance. Commented Jun 6, 2020 at 13:40
  • @FumbleFingersReinstateMonica I know what two-dimensional and three-dimensional are, I don't understand two-dimensional surface metaphor though. Google doesn't understand that either, would you please explain a bit more?
    – Piete3r
    Commented Jun 6, 2020 at 15:15

1 Answer 1


Your sentence describes the easy access to goods that results from how widespread (extensive) e-commerce is. The word "profound" doesn't fit well as an adjective for "infrastructure", but it could describe its effects, for example,

E-commerce infrastructure has profound effects on the way business is conducted.

So, "extensive" is better to describe the state of something, while "profound" is better to describe effects or influence, or changes that have resulted.

(You didn't ask about this, but the switch in perspective between "everything I need" and "the tip of your fingers" is a little jarring. You might want to stay with either "I/my" or "you/your".)

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