- Bob turns out to be uncompromising
- Bob’s turn to become obstinate
- Dogged
- Immovable
- Mulish
- Obdurate
- Obstinate
- Inflexible
- Obdurate
- Stubborn
- Unpersuadable
- Pertinaciously adhering to an opinion, purpose, or
course; persistent; not yielding to reason, arguments, or other means;
stubborn; pertinacious; -- usually implying unreasonableness.
- Not yielding; not easily subdued or removed; as,
obstinate fever; obstinate obstructions.