Solemn

Solemn

Definition- serious; grave
The solemn look on their faces showed their sadness for their friend's death.

Antonym- funny
The movie was so funny, it had everyone laughing.

Rigorous

Rigorous

Definition- strict; harsh; severe
The rigorous sun beat down on the people tanning.

Antonym- easy
The test was so easy, he got 100 percent.

Pragmatic

Pragmatic

Definition- practical; down-to-earth; based on experience rather than theory
The girl was pragmatic and knew she wasn't going to win everything.

Antonym- impractical
It was impractical of the boy to assume nothing would happen to him if he didn't wear his seat belt.

Dispassionate

Dispassionate

Definition- without passion; objective; neutral

The dispassionate collector stopped collecting hats because he didn't like to anymore.

Antonym- compassionate

The girl was compassionate about her boyfriend and loved him a lot.

Fervor

Fervor

Definition- passion

The fervor the couple showed for each other proved their significance for each other.

Antonym- calmness

The calmness he had when he won showed his modesty.

Vacillate

Vacillate

Definition- to be indecisive; to waver back and forth

She was vacillate in whether to wear a short dress or a long dress.

Antonym- opinionated

His strongly opinionated attitude made everyone know how he felt all the time.

Deference

Deference

Definition- submission to another's will; respect; courtesy

After being yelled at by the teacher, the student still showed deference and no attitude.

Antonym- disrespect

The mother felt much disrespect from her child when they still didn't clean their room after she'd ask them to.