Someone who has immigrated into a country by bypassing customs and immigration controls.(noun)
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Use "illegal immigrant" in a sentence
"Washington stakes an extra half billion this year, hacked from the Irish illegal immigrant levy."
""The hard truth is, Salvo, that as you very well know, or should know, you have been an illegal immigrant ever since your ten-year-old feet touched down on Southampton dock-side, and in all that time you never once applied for asylum."
"Bush’s first choice for secretary of labor, Linda Chavez, described the firestorm that followed revelation of her sheltering of an illegal immigrant as “a game being played by the media, a kind of gotcha-game, where it’s a never-ending dribble of one story after another.”"