1. most dark and gloomy; hardest to see through
Usage: superlative form of murky
2. most unclear or confusing; most difficult to understand
Usage: superlative form of murky; figurative use

Examples

• The murkiest part of the lake was impossible to see through.
• This is the murkiest explanation I’ve ever heard.
• The cave’s murkiest depths remained unexplored.
• The scandal’s murkiest details were never revealed.
• Even on the murkiest days, she went for her morning walk.
• The contract’s murkiest clauses confused the lawyers.