mitteaktiivseid

Mitteaktiivseid is the Estonian plural form of the adjective mitteaktiivne, meaning not active or inactive. It is used in neutral and technical writing to describe multiple items that do not exhibit activity or effect under specified conditions. The form is common in scientific contexts when referring to several inactive substances, agents, or processes.

In science and engineering contexts, mitteaktiivseid can describe substances that do not participate in reactions under the tested conditions, or reagents that remain inert. In pharmacology, the term may refer to inactive ingredients in drug formulations that do not contribute to therapeutic effects, often described as mitteaktiivsed koostisosad. In biology or medicine, it can describe cells or pathways that are temporarily not active, although more precise or context-specific terms are frequently preferred.

Etymology and grammar: The word is formed from the negating prefix mitte- and the adjective aktiivne (active). The ending -seid marks the plural partitive form, used when the inactive items are the object of a sentence or part of a larger noun phrase.

See also: aktiivne, inaktiivsus, platseebo, inert.