General opposites:
* Humble: This is a classic opposite, indicating modesty and lack of arrogance.
* Unassuming: This implies being simple and not drawing attention to oneself.
* Modest: This emphasizes a lack of pride and a realistic view of oneself.
* Down-to-earth: This suggests being practical and relatable, the opposite of being aloof.
More specific opposites:
* Submissive: If you're focusing on the arrogant and domineering aspect of haughty, this is a strong opposite.
* Diffident: This highlights a lack of confidence and a tendency to be shy.
* Unpretentious: This emphasizes the lack of artificiality and snobbery associated with haughtiness.
The best opposite for "haughty" depends on the specific context and the specific aspect of haughtiness you want to contrast.