1. in a dirty or unclean manner; with filth or dirt
2. in an obscene, vulgar, or morally offensive manner
Usage: informal

Examples

• The kitchen was filthily neglected for months.
• He spoke filthily, using crude language throughout the conversation.
• The animals were kept filthily in cramped conditions.
• She filthily insulted everyone at the gathering.
• The water ran filthily from the broken pipe.