facile princeps /fasˈi-lē prinˈseps or fakˈi-le prinˈkeps/

Obviously pre-eminent

• dead as a dodo
• dead as a doornail
• dead as a herring
• dead as mutton
• dead-ball line
• dead-beat
• deadbeat
• dead-beat escapement
• deadbeats
• dead-bolt
• dead-bolts
• dead-born
• dead-cart
• dead-carts
• dead-cat bounce
• dead centre
• dead centres
• dead cert
• dead certs
• dead-clothes
• dead-colouring
• dead-deal
• dead-deals
• dead-doing
• dead drop