Teistsuguseks

Teistsuguseks is a grammatical form in Estonian, the translative form of the adjective teistsugune, meaning “different” or “other.” It is used to express a change of state or transformation, typically with verbs of becoming such as saama or muutuma. The form teistsuguseks (singular) is used after these verbs to denote that someone or something becomes of a different kind or manner, for example: Ta sai teistsuguseks inimeseks. Here, inimesed is in the translative case, indicating the resulting state.

The usage emphasizes a transition from one state to another rather than a static property. Teistsuguseks differs from the static adjective teistsugune in that teistsuguseks marks the process of becoming rather than simply describing a current characteristic.

Etymology: the form is created from teistsugune plus the translative suffix -ks. The construction is common in literary and formal Estonian when describing changes in identity, role, or classification.

Examples:

- Ta sai teistsuguseks inimeseks. (He became a different person.)

Related concepts include the Estonian translative case and the broader use of adjectives in predicative positions to express state changes.