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US /ʌn'noʊtɪsəbəl/
・UK /'ʌn'nəʊtɪsəbl/
If the size of the opening is much larger than the wavelength of light, the diffraction will be almost unnoticeable.
Our model of the little gray man, which is a model we actually used all the time, the idea was we wanted you to be so unnoticeable that people wouldn't even remember if you had gotten on and off of their elevator.
So over 500 cycles, roughly a year and a half of use, that difference is almost unnoticeable.
By 2006, there were estimated to be 19 different variations of the superdollar in circulation, each bearing a unique, nearly-unnoticeable flaw.
We wanna be unnoticeable.
blended swipe along your jawline in natural daylight—the right color should remain unnoticeable.