What does unmodulated mean?
Unmodulated means without variation or modulation. In its most familiar use, it describes a voice, delivery, or tone that remains steady in pitch, loudness, and emotional expression, often suggesting a flat or monotonous quality. The word can also have a technical meaning: an unmodulated signal or carrier has not been deliberately varied in amplitude, frequency, phase, or another property. As a relatively formal term, unmodulated is more precise than simply saying that something is steady or flat. It is especially useful when the absence of variation itself is noteworthy, as in a speech delivered without expressive inflection or a communications signal that remains constant. The negative prefix un- clarifies that the quality is not merely difficult to perceive or slightly uneven but genuinely unvaried.
adjectiveNot modulated, especially maintaining a steady pitch, tone, or loudness without variation.
- Describing a voice, speech, or tone that remains steady and unvarying.
- Describing a signal, carrier, or other technical quantity that has not been varied in frequency, amplitude, phase, or another controlled property.
"The speaker's unmodulated voice made the announcement difficult to listen to for long periods."
"His unmodulated delivery suggested that he was reading directly from the script."
"The receiver picked up an unmodulated carrier but no useful signal."
Unmodulated is what a steady, unvarying voice sounds like to a listener: clear, level, and conspicuously without inflection.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unmodulated come from?
Unmodulated is formed from the negative prefix un- and the adjective modulated. The related verb modulate comes from Latin modulare, meaning to measure or regulate according to a measure, ultimately connected with modulus, Latin for a small measure. The English adjective therefore literally denotes something that has not been regulated or varied in this way.
How unmodulated is actually used
The word is chiefly formal and technical. In descriptions of speech, it often carries the implication of monotony or a lack of expressive variation; in engineering and communications, it refers specifically to the absence of modulation.
Easily confused with unmodulated
An unmodulated voice or signal remains essentially unchanged, whereas a modulated one varies in pitch, loudness, or another controlled property.