inactive
UK[ɪnˈæktɪv]US[ɪnˈæktɪv]
adj
not active or in use; not doing anything
adj
(of a chemical substance) not having a chemical or biological effect; not reactive
adj
(of a disease) not causing symptoms or problems at the present time
Morpheme Breakdown
in
active
in
not
active
functioning
Etymology
the word 'inactive' is a straightforward formation from the latin-derived prefix 'in-' and the adjective 'active'. the prefix 'in-', from latin, consistently serves as a negator, akin to english 'un-'. the root 'active' originates from latin 'activus', itself from the verb 'agere' meaning 'to do, drive, or act'. the core semantic logic is transparent: the prefix directly reverses the meaning of the base word. therefore, 'inactive' literally means 'not active', a meaning that has remained consistent from its formation in english, applying to persons, things, substances, and conditions that lack action, energy, or effect.
Analysis
Structure: in (not) + active (functioning)
in: a latin prefix meaning 'not', 'without', or 'opposite of'. it functions as a negative or privative prefix.
active: from latin 'activus', meaning 'doing, performing, energetic'. it functions as the core adjective describing a state of action or operation.
Examples
the volcano has been inactive for centuries.
the account was marked inactive due to a lack of recent transactions.
the vaccine uses an inactive form of the virus to stimulate immunity.