po-faced /pōˈfāst/ (informal)

1. (also shortened to po) stupidly solemn and narrow-minded
2. Stolid, humourless

• gabardines
• gabba
• gabbard
• gabbart
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• gabbas
• gabbed
• gabber
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• gabbier
• gabbiest
• gabbing
• gabble
• gabbled
• gabblement
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• gabbler
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• gabbling
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• gabbro
• gabbroic
• gabbroid
• gabbroitic