What does "fall short" mean?

To be less satisfactory than expected; to be inadequate or insufficient.

Fall short

Common synonyms include: be deficient, be disappointing, be found wanting, be inferior, be insufficient, collapse.

/fɔl ʃoɹt/ verb

verb ·Moderate ·College level

Verb

1
To be less satisfactory than expected; to be inadequate or insufficient. idiomatic
"I did my best, but fell far short of the score cutoff."
2
fail to meet (expectations or standards) wordnet

"I did my best, but fell far short of the score cutoff."