Significatio
Saying less than is meant so the audience supplies the rest.
Significatio, described in the Rhetorica ad Herennium as emphasis, leaves more to be suspected than has been said. The speaker states a partial fact or a pointed understatement and relies on the audience to complete the implication — which they then hold as their own conclusion rather than the speaker's accusation.
The technique is legally and politically useful precisely because the damaging claim is never made. 'He was seen leaving the office at three in the morning' asserts only a time and a place.
Ancient handbooks list several routes to it: exaggeration, ambiguity, consequence, aposiopesis (breaking off), and analogy. All share the structure of an intentionally incomplete statement with an obvious completion.
Common mistake: making the implication so faint that no one draws it, or so heavy that it becomes plain assertion with deniability attached. The figure works only in the narrow band where the inference is unavoidable but unstated.
“I will not mention his debts, his allies, or where he spent last winter.”
Keep reading the glossary
A rhetorical figure in which a speaker names something while claiming not to mention it — the 'not to mention' move.
The device of raising a subject by explicitly refusing to raise it — 'I will not mention…'
A rhetorical figure in which a sentence breaks off mid-thought, leaving the reader to complete it.
An understatement that affirms by denying its opposite — 'not bad' meaning 'good'.