"annihilating" in the verb sense
1. eliminate, annihilate, extinguish, eradicate, wipe out, decimate, carry off
kill in large numbers
"the plague wiped out an entire population"
"annihilating" in the adjective sense
1. annihilative, annihilating, devastating, withering
wreaking or capable of wreaking complete destruction
"possessing annihilative power"
"a devastating hurricane"
"the guns opened a withering fire"
2. annihilating, devastating, withering
making light of
"afire with annihilating invective"
"a devastating portrait of human folly"
"to compliments inflated I've a withering reply"- W.S.Gilbert
Source: WordNet® (An amazing lexical database of English)
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