Inadequate
The term "inadequate" refers to something that is insufficient or not enough to meet a particular standard or requirement. It can describe a variety of situations, such as inadequate resources, support, or skills. For example, if a student lacks adequate study materials, they may struggle to perform well in their classes.
Inadequate can also apply to emotional or physical conditions. For instance, a person may feel inadequate if they believe they do not possess the necessary qualities to succeed in their career or personal life. This feeling can lead to low self-esteem and hinder personal growth.