| by stealth(expression, clandestine, secretly, slyly, underhandedly) |
| cabalistic |
| calm(quiet, mild, controlled, self-possessed) |
| calm and collected(expression, idiom, calm, quiet, reasonable) |
| camouflaged(secret, hidden, clandestine, underground, underhanded) |
| censored |
| chilled(adjective, calm, quiet, reasonable, mild) |
| cloaked(secret, hidden, clandestine, underground, sneaky) |
| closed |
| closet(secret, hidden, clandestine, underground, fraudulent) |
| conservative(adjective, calm, quiet, reasonable, mild) |
| conspiratorial(clandestine, underground, undisclosed, sneaky, covert) |
| controlled(adjective, calm, quiet, reasonable, mild) |
| cool(calm, quiet, mild, controlled, self-possessed) |
| corked up(expression, adjective, calm, quiet, reasonable) |
| crafty(dishonest, cunning, deceitful, sneaky, underhanded) |
| cunning(dishonest, deceitful, sneaky, underhanded, covert) |
| discreet(adjective, calm, quiet, reasonable, mild) |
| disguised(secret, hidden, clandestine, underground, sneaky) |
| eclipsed |