含糊其词
to equivocate; to talk evasively (idiom)
微乎其微
a tiny bit; very little; next to nothing (idiom)
渺乎其微
remote and insignificant (idiom)
直呼其名
to address sb directly by name (idiom); to address sb by name without using an honorific title (indicating either familiarity or overfamiliarity)
神乎其技
(idiom) brilliant; extremely skillful; virtuosic