Synonyms of inertia

inertia

noun

i-ˈnər-shə 

as in laziness

an inclination not to do work or engage in activities

the inertia that grips so many of the club's members is the reason why nothing ever gets done

Synonyms & Similar Words

• laziness
• idleness
• indolence
• sloth
• shiftlessness
• loafing
• lethargy
• apathy
• sluggishness
• lassitude
• supineness
• languor
• lounging
• listlessness
• lolling
• dallying
• goldbricking

Antonyms & Near Antonyms

• industry
• drive
• initiative
• industriousness
• ambition
• enterprise
• hustle
• energy
• perseverance
• diligence
• go
• vigor
• vitality
• exuberance
• assiduity
• animation
• robustness
• vivacity
• liveliness
• pep
• sprightliness
• briskness
• vibrancy
• assiduousness
• vim
• lustiness
• peppiness
• jazziness

Example Sentences

Recent Examples of inertia

And while Italy is often derided for its dysfunctional government and bureaucratic inertia, the cultural and economic split between the north and south remains stark, with the province of Lombardy alone (of which Milan is the capital) contributing roughly a fifth of the country’s GDP. —Laura May Todd, Architectural Digest, 14 Apr. 2026

The narrators of these songs are trapped inside their habits, aware that the inertia of their personalities is too strong to be moved by another person. —Daniel Felsenthal, Pitchfork, 7 Apr. 2026

These are lighter, more heat-resistant, and have less inertia, which translates to sharper turn-in and less effort to move the thing. —New Atlas, 4 Apr. 2026

The film meticulously depicts inertia and zero-gravity movement. —Samantha Agate, Kansas City Star, 3 Apr. 2026