inadequate
/ɪnædˈkwɒt/ i-næd-KWOT
Definitions
1. adjective
not good enough or sufficient for the needs or standards
“The inadequate lighting in the room made it difficult to read.”
2. noun
a person or thing that is not good enough or sufficient for the needs or standards
“The team’s inadequate performance in the game led to their loss.”
3. verb
to make or become inadequate
“The company’s policies inadequately address the needs of its employees.”