LEARN + JAPANESE / Note 131 JLPT N4

Stopped Being, Stopped Doing (なくなる)

なくなる attaches to a verb’s negative ない-stem, or to an adjective’s negative form, and describes something gradually stopping or fading away, “no longer does,” “isn’t anymore.” It’s built from なる, the same “become” you already know, applied to a negative state.

In Real Life
なくなる describes a gradual fade, not a sudden choice, closer to “I’ve stopped doing this somewhere along the way” than “I decided to quit.” ことにする, by contrast, always names a deliberate decision, a useful pair to keep distinct.
In Real Life
These sentences chain two なる clauses together, one positive change causing a negative one, 明るくなって(became bright)、怖くなくなりました(stopped being scary), a common way to describe cause and effect unfolding over time.

Vocabulary

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