From Longman Dictionary of Contemporary Englishinertiain‧er‧tia /ɪˈnɜːʃə $ -ɜːr-/ noun [uncountable] 1 CHANGE/MAKE something DIFFERENTwhen no one wants to do anything to change a situation political inertia2 technicalHPTEM the force that keeps an object in the same position or keeps it moving until it is moved or stopped by another force3 ENERGETICa lack of energy and a feeling that you do not want to do anything SYN apathy —inertial adjective
Examples from the Corpus
inertia• The group helped me overcome my inertia and lose weight.• the inertia and bureaucracy of large companiesFrom Longman Business Dictionaryinertiain‧er‧tia /ɪˈnɜːʃə-ɜːr-/ noun [uncountable] a tendency for a situation to stay the same for a long timeHe believes that suppressed demand after years of inertia will lead to a housing recovery this year.Origin inertia (1700-1800) Latin iners; → INERT 