Question 1

What does "easier said than done" mean?

Accepted Answer

Something that sounds simple to do but is actually much more difficult in practice.

Question 2

How do you use "easier said than done" in a sentence?

Accepted Answer

Quitting sugar is easier said than done.

Question 3

Is "easier said than done" formal or informal?

Accepted Answer

"easier said than done" is register-neutral — appropriate in both casual and formal contexts. A very common response to a suggestion that seems overly simple.