This word is Latin for "inactive," or more literally, "unskilled."
Something inert can't move on its own and can't resist being moved. (More generally, inert people and things are lazy and inactive.)
In physics, inertia is an object's resistance to motion, or its resistance to a change in speed. In other words, inertia is the tendency for a body to stay at rest, or to stay in motion, unless something else acts on it.
More generally, inertia is a lazy tendency to stay inactive.
in UR shuh
Part of speech:
(Like "milk," "rice," and "advice," uncountable nouns are words for stuff that can’t be broken into exact units. You talk about "some milk," "the rice," and "a lot of advice," but you don’t say "a milk," "three rices," or "many advices."
Likewise, talk about "the inertia," "this inertia," "his inertia," "such inertia," "no inertia," and so on,
but don’t say "an inertia," "one inertia," or "inertias.")
Other forms worth knowing:
"Inertness" and "inertion" are nouns you can use in place of "inertia," but I think "inertia" sounds best.
For general topics, the adjective is "inert" (in URT) and the adverb "inertly."
(If you mean "related to physical inertia," you can use the adjective "inertial" [in UR shull].)
How to use it:
Compared to more general words like "sloth," "dullness," "laziness," "idleness," and "inactivity," our word "inertia" has a fun scientific flavor.
When you talk about, say, legislative inertia, you're hinting that not only are the lawmakers being lazy and getting nothing done but also that outside forces will need to apply more pressure to get those lawmakers moving.
Like we just did with the phrase "legislative inertia," we can talk about inertia as if it belongs to someone, to some group of people, or to some thing or some period of time: her inertia, my inertia, bureaucratic inertia, the program's inertia, summertime inertia, Friday afternoon inertia.
Or, talk about being frustrated by inertia, being driven into inertia, slipping into inertia, reducing inertia, combating inertia, overcoming inertia and so on.
examples: Even as she watches Bo on the Go!, part cartoon, part exercise program, Taylor sprawls on the rug, inert, a sippy cup in one hand.
Surely you can blame inertia, not malice, for how long you had to wait for the company to send your refund.