insidiously

adv: He had insidiously wormed his way into her affections. 他已神不知鬼不觉地逐渐赢得了她的爱情.

insensately, insensibility, insensible, insensibly, insensitive, insensitively, insensitivity, insentient, inseparability, inseparable, inseparably, insert, insertion, inset, inshore, inside, inside lane, inside left, inside right player, insider, insidious, insidiousness, insight, insightful, insignia, insignificance, insignificant, insignificantly, insincere, insincerely, insincerity, insinuate, insinuation, insipid, insipidity, insipidly, insist, insist on sth. (doing sth.), insist upon, insistence, insistent,