How Good Is Your Vocab?

Not telling the truth; lying
The mendacious reports misled the public into believing the crisis was over.

Feeling sluggish or lacking energy
After the long flight, I felt too lethargic to do anything productive.

Relating to motion
The kinetic energy of the moving car was converted into heat upon impact.

Young or youthful; immature
His juvenile behavior at the meeting frustrated his colleagues.

Unwilling to change one’s views or position
Her intransigent attitude made negotiations impossible.