dour /door or dowˈər/

1. Obstinate, determined
2. Sullen
3. Grim

dourˈly adverb

dourˈness noun

• cost an arm and a leg
• co-star
• costard
• costardmonger
• costards
• Costa Rican
• Costa Ricans
• co-starred
• co-starring
• co-stars
• costate
• costated
• cost-benefit analysis
• cost-benefit assessment
• cost centre
• cost centres
• coste
• costean
• costeaned
• costeaning
• costeanings
• costean-pit
• costean-pits
• costeans
• costed