Concealedly, meaning kept hidden or secret, can be expressed with various synonyms. Covertly, covert, or clandestinely collates with concealedly. These words indicate secrecy and suggest actions that are done in secret or are intended to be private. Discreetly, furtively, and stealthily are other options that describe the manner in which something is concealed, often suggesting a quiet or careful approach. One can also use surreptitiously, privately, or surreptitiously to connote the idea of being hidden from the view of others. Overall, hidden, secret, or private are synonyms that can be used in place of concealedly, depending on the context and the intended meaning one wants to convey.