loquaciousness — talking or tending to talk much or freely; talkative; chattering; babbling; garrulous: a loquacious dinner guest.
loquacity — the state of being loquacious; talkativeness; garrulity.
officialese — a style of language used in some official statements, often criticized for its use of polysyllabic jargon and obscure, pretentiously wordy phrasing.
periphrasis — the use of an unnecessarily long or roundabout form of expression; circumlocution.
pleonasm — the use of more words than are necessary to express an idea; redundancy.
prolixity — extended to great, unnecessary, or tedious length; long and wordy.
tautology — needless repetition of an idea, especially in words other than those of the immediate context, without imparting additional force or clearness, as in “widow woman.”.
verbiage — overabundance or superfluity of words, as in writing or speech; wordiness; verbosity.
verbosity — the state or quality of being verbose; superfluity of words; wordiness: His speeches were always marred by verbosity.
verbality — wordiness; verbal diffuseness: a speech full of tedious verbality.
verbigeration — the condition or instances of repeating the same word or sentence against one's will as a symptom of a psychiatric disorder