Meaning of the word lacking in English

What does lacking mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lacking

US /ˈlæk.ɪŋ/
UK /ˈlæk.ɪŋ/

Adjective

not having enough of something; deficient

Example:
The report was lacking in detail.
His performance was found lacking.