Adversus solem ne loquitor.
"Don't speak against the sun."
Also translated as, "Don't waste your time arguing the obvious."
When confronted by an important, irrefutable fact, there is no point in arguing about it any further.
Speaking discursively or straying from the point.
1. Speaking to someone else.
2. Making an address to others.
Speaking pompously, in a high-flown, turgid (complicated and difficult to understand) manner: "Nelson's altiloquent speech to the professors was expressed in extremely formal language in an effort to impress them and it resulted in sounding silly because of this attempted sophistication."
, more ambiloquent, most ambiloquent
1. A reference to a comment that is spoken with uncertainty or hesitation: The politician was criticized for his ambiloquent declarations and lack of saying exactly what he meant to communicate to his audience.
2. Etymology: from Latin ambiguus, "moving from side to side, of a doubtful nature", from ambigere, "to go about, wander, doubt"; from ambi-, "around, about, on both sides" + agere, "to drive, to move".
Doubtful or ambiguous language.
amphoriloquy (s), amphoriloquies (pl) (noun forms)
Similar to the sound produced by blowing or speaking into an amphora (two-handled vase), or other large vessel with a small mouth, as in "amphoric resonance"; a cough, an echo, a voice, etc.: "His amphoriloquy indicated a voice sound that had a hollow, blowing characteristic, which could be heard because of the patient's pulmonary cavity (space in the lung when part of it is removed) as he or she talks or whispers."
1. A preface, or the first place to turn when speaking.
2. A term, which stage players use which is a reference to their cue.
Someone who contradicts.
blandiloquence (s) (noun)
Courteous, mild, and complimentary or flattering language.
, more blandiloquent, most blandiloquent
1. Speaking in a flattering, smooth-talking, or honey-tongued way: "Margaret was a clerk who was attracted by customers because she always spoke to them in a blandiloquent manner."
2. Etymology: from Latin blandiloquentia, "smooth-talking"; composed of blandus, "soft" + loquor, "to talk" or loquentia, "talking, talk".
Speaking with a stammer or lisp.
1. Speaking briefly or concisely; laconic.
2. Brevity, or shortness, of speech.
Given to concise, or brief, speaking.