Ten nowy bezprzewodowy alarm jest bezgłośny.

Breakdown of Ten nowy bezprzewodowy alarm jest bezgłośny.

być
to be
ten
this (m)
nowy
new
alarm
alarm
bezprzewodowy
wireless
bezgłośny
noiseless

Questions & Answers about Ten nowy bezprzewodowy alarm jest bezgłośny.

How are the adjectives bezprzewodowy and bezgłośny formed in this sentence?
Both use the prefix bez- (meaning without) attached to a noun root, capped with an adjective suffix. Bezprzewodowy comes from przewód (wire or cable) plus the suffix -owy. Bezgłośny comes from głos (voice or sound) plus the suffix -ny.
Why does the root vowel change from ó in the noun przewód to o in bezprzewodowy?
In Polish, the vowel ó often shifts back to o when a suffix is added because it is no longer in the final closed syllable of the word. You will recognize this same predictable shift from words like samochód becoming the adjective samochodowy.
Why is there an ś in bezgłośny instead of the s found in the root noun głos?
Adding the suffix -ny usually triggers a consonant mutation, softening the preceding consonant. Here, the hard s from głos softens to ś before the n. This palatalization is a very common pattern when turning nouns into adjectives.
Why is the adjective bezgłośny in the nominative case after jest? Shouldn't it be instrumental?
When the word following a form of być (to be) is just a standalone adjective, it stays in the nominative case. You only use the instrumental case after być when the predicate includes a noun. Since bezgłośny stands alone here, the nominative is correct.

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