The aims of this research are: to know the similarities and differences of uslub al-majhûl
in Arabic and uslub passive voice in English, by using a contrastive study analysis. The
approach used in this research is descriptive qualitative, the theory used in analyzing the
data is Miles and Huberman's theory, namely collecting data, selecting relevant data,
presenting data, and concluding. The results of this study are: there are similarities and
differences between the two uslubs. The equation is uslub al-majhul is a verb whose
subject is discarded and replaced by nâib al-fâ'il, its purpose is to summarize the sentence,
the subject is known, the subject is unknown, the subject is afraid, the subject is belittled
and the subject is glorified. Uslub passive voice is a verb whose subject is not stated
because it is unknown, or because it is vague, or because it is not obligatory to appear in
a sentence. Both uslub uses transitive verbs. The difference is that Arabic has many
analogies (wazan) to form the verb majhûl, whereas English has only two ways of forming
past participles, namely by adding the word "ed" to the root verb and with an indefinite
pattern called irregular verbs. In the al-majhûl uslub there is a nâib al-fail that does not
have a passive uslub voice. In the uslub of passive voice, it is found that there are modal
that are not included in the uslub al-majhûl. Arabic has ismiyah and fi'liah sentences while
English only has ismiyah sentences.