Unmanageable

Stubborn

Obstinate

Recalcitrant

Unyielding

Uncontrollable

Defiant

Intransigent

1 Synonym: Intransigent

Despite numerous negotiations, the union remained intransigent on their demands.

His intransigent stance on the issue led to a prolonged and unresolved debate.

The diplomat's intransigent attitude frustrated efforts to reach a compromise.

Her intransigent refusal to change her opinion made it difficult to find common ground.

2 Synonym: Stubborn

His stubborn refusal to admit he was wrong caused tension in the team.

Despite numerous suggestions, she remained stubborn in her decision to go alone.

The stubborn child refused to eat any vegetables, no matter how they were prepared.

Her stubborn determination helped her overcome many obstacles on the way to success.

3 Synonym: Obstinate

His obstinate refusal to change his mind led to ongoing conflicts with his colleagues.

The obstinate mule would not budge, no matter how hard the farmer pulled.

Despite all evidence to the contrary, she remained obstinate in her beliefs.

The team's progress was hindered by the manager’s obstinate adherence to outdated methods.

4 Synonym: Recalcitrant

The recalcitrant student repeatedly ignored the teacher’s instructions, causing disruptions.

The recalcitrant attitude of the employee led to disciplinary action from management.

His recalcitrant behavior in meetings made it difficult for the team to reach a consensus.

The government struggled to deal with the recalcitrant regions that refused to comply with new regulations.