Like a snake in the grass and Sinister

Sinister and like a snake in the grass are semantically related. In some cases you can use "Sinister" instead an adjective phrase "Like a snake in the grass".

Sinister adjective - Being or showing a sign of evil or calamity to come.

Like a snake in the grass and sinister are semantically related. Sometimes you can use "Like a snake in the grass" instead an adjective "Sinister".