Wayward (adjective)

1. Difficult to control or predict.
2. Not willing to conform to rules or standards.
3. Inclined to go counter to what is expected or desired.
4. Stubbornly resistant to guidance or discipline.

Origin:

Middle english wayward, from way + -ward.

Examples:

1. The wayward teenager refused to follow his parent's rules.
2. The wind was wayward and difficult to predict.
3. The horse was wayward and kept trying to throw its rider.
4. The company's wayward CEO was finally removed from his position.
5. The wayward dog refused to come when called.