hollow
adj
1 empty, not solid, unfilled, vacant, void
2 cavernous, concave, deep-set, depressed, indented, sunken
3 deep, dull, expressionless, flat, low, muffled, muted, reverberant, rumbling, sepulchral, toneless
4 empty, fruitless, futile, meaningless, pointless, Pyrrhic, specious, unavailing, useless, vain, wanky (taboo slang) worthless
5 empty, esurient, famished, hungry, ravenous, starved
6 artificial, cynical, deceitful, faithless, false, flimsy, hollow-hearted, hypocritical, insincere, treacherous, unsound, weak
7 beat (someone) hollow (informal) defeat, hammer (informal) outdo, overcome, rout, thrash, trounce, worst
n
8 basin, bowl, cave, cavern, cavity, concavity, crater, cup, den, dent, depression, dimple, excavation, hole, indentation, pit, trough
9 bottom, dale, dell, dingle, glen, valley
vb
10 channel, dig, dish, excavate, furrow, gouge, groove, pit, scoop
Antonyms
, adj
4 gratifying, meaningful, pleasing, satisfying, valuable, worthwhile
8 bump, mound, projection
9 bluff, height, hill, knoll, mountain, rise