Inertia Definition

ĭ-nûrshə

noun

The tendency of matter to remain at rest if at rest, or, if moving, to keep moving in the same direction, unless affected by some outside force.

Webster's New World

A tendency to remain in a fixed condition without change; disinclination to move or act.

Webster's New World

(medicine) Lack of activity; sluggishness; said especially of the uterus, when, in labour, its contractions have nearly or wholly ceased.

Wiktionary

Synonyms:

Antonyms:

Other Word Forms of Inertia

Singular:

inertia

Plural:

inerti, inertias

From Latin inertia (“lack of art or skill, inactivity, indolence”), from iners (“unskilled, inactive”), from in- (“without, not”) + ars (“skill, art”).

From Wiktionary
Latin idleness from iners inert- inert inert

From American Heritage Dictionary of the English Language, 5th Edition