erratic (adjective) erratic: unpredictable; wandering
Sinonime: ability,
appeal,
articulation, command of language,
delivery,
diction,
dramatic,
expression, expressiveness, expressivity,
facility,
fervor,
flow, fluency,
force, forcefulness, gift of gab, grandiloquence, loquacity, meaningfulness, mellifluousness, oration, oratory,
passion, persuasiveness,
poise,
power,
rhetoric,
spirit,
style,
vigor,
vivacity, volubility,
wit, wittiness
Antonime: dullness, inarticulateness