The phrase "lays open" refers to revealing or exposing something, often a secret or hidden truth. Antonyms for this phrase could include words like conceal, cover, hide, or mask. These words suggest a desire to keep something private or protected, rather than making it openly known to others. Alternatively, antonyms for "lays open" could include words like protect, safeguard or defend. These words suggest a desire to keep something secure, safe or out of harm's way. Overall, antonyms for "lays open" include words that suggest a desire for privacy or protection, rather than openness and transparency.