NumericQ1[x, {a, b, ..}] is like NumericQ, but assumes that {a,b,..} are numeric quantities.
NumericQ1[x, {a, b, ..}]
NumericQ
{a,b,..}
Overview
NumericQ[3 a + Log[b] + c^2]
\text{False}
NumericQ1[3 a + Log[b] + c^2, {}]
NumericQ1[3 a + Log[b] + c^2, {a, b, c}]
\text{True}