concealing one's talents, status, intentions, etc.; maintaining a strict incognito; self-effacement
ambiguous; obscure; equivocal
concealing one's talents, position, status, intentions, etc.
propensity to efface oneself; being prone to conceal one's talent
the world is covered in darkness; all is plunged into darkness
last and first days of the month
hiding one's abilites (by living in concealment)