1. most covered with or containing soot; blackest from soot
Usage: superlative form of sooty

Examples

• The sootiest chimney in the neighborhood needed immediate cleaning.
• After the fire, the sootiest walls required special treatment.
• The old factory had the sootiest smokestacks in the city.
• She chose the sootiest corner of the fireplace to examine.
• The sootiest pots were the hardest to scrub clean.
• His face was the sootiest after working near the furnace.