He was feeling frustrated.

Meaning: He was experiencing the emotion of annoyance or upset because he was having difficulty finding the toy car.

Choice of Words: To feel means to experience a particular emotion or sensation. Frustrated means annoyed or upset because of a difficulty or delay in achieving something.

Alternative Expressions

Related Expressions

• Cat frustrated, mouse triumphant, chase ended.
• Cat felt frustrated.
• I took breaks when I felt frustrated.
• Fish slipped away, leaving the cat frustrated and hungry.
• Hunter felt frustrated and angry.
• Cat, frustrated, returns to sun's warm glow.
• Impatient people often feel frustrated.
• Cat felt frustrated and alone.
• The hunter was frustrated by the fox's cleverness.
• Cat frustrated, mouse triumphant.