insecure

a.不安全的

insalubrity, insane, insane asylum, insanely, insanitary, insanity, insatiable, insatiably, insatiate, inscribe, inscription, inscrutability, inscrutable, inscrutably, insect, insect-eating, insecticidal, insecticide, insectivore, insectivorous, insecurely, insecurity, inseminate, insemination, insensate, insensately, insensibility, insensible, insensibly, insensitive, insensitively, insensitivity, insentient, inseparability, inseparable, inseparably, insert, insertion, inset, inshore,