Meaning of the word "reality is (often) disappointing" in English

What does "reality is (often) disappointing" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

reality is (often) disappointing

US /riˈæləti ɪz (ˈɔfən) ˌdɪsəˈpɔɪntɪŋ/
UK /riˈæləti ɪz (ˈɒfən) ˌdɪsəˈpɔɪntɪŋ/
"reality is (often) disappointing" picture

Idiom

a phrase used to express that the actual outcome or state of things is less desirable than what was expected or imagined

Example:
I thought the vacation would be perfect, but reality is often disappointing.
He wanted to be a rock star, but reality is disappointing; he's now an accountant.