Choose the perfect synonym or antonym for the word

Hollow

/ˈhɒləʊ/

An empty space inside something solid or the lack of substance or meaningfulness.

Synonyms:

Her eyes are bright but hollow and lifeless.'The hollow down by the flare?' 'Ah!She felt hollow and empty.

Derived from Middle English holow, from Old English holh (cave, cavity), related to Proto-Germanic *hulô (hole).

15 mentions per 1 million words

Moderate

Hint: Frequency according to COCA