Unsubstituted

Part of speech: adjective

Definitions

1. Not having been replaced or exchanged by an alternative; retaining the original component without any alteration; not changed or switched out in any way
2. Remaining in the initial or original state without any substitution made; keeping the authentic or first element intact; not altered by replacement of parts
3. Characterized by the absence of replacement or exchange; preserving the initial or primary form without modification; maintaining the original constituent as it was first presented

Etymology: "Unsubstituted" is a plain compound: the prefix "un-", meaning "not," attached to "substituted," the past participle of "substitute." Its ancestry runs back to a Proto-Indo-European negative particle, *ne, which passed through Proto-Germanic and Old English as the prefix "un-" and has been a productive English negation ever since. "Substituted" comes from the Latin "substitutus," from "substituere," meaning "to put in place of another." Its parts are "sub-," "under," and "statuere," "to set up" or "place," so the core idea is setting one thing beneath or in the position of another. Because "un-" has been available to English speakers for centuries, it can be added to nearly any participle, which is how the adjective takes its form here.

Synonyms: unmodified, unreplaced, plain, original

Antonyms: substituted, modified, replaced