"damaging" in the verb sense
inflict damage upon
"The snow damaged the roof"
"She damaged the car when she hit the tree"
suffer or be susceptible to damage
"These fine china cups damage easily"
"damaging" in the adjective sense
1. damaging, detrimental, prejudicial, prejudicious
sometimes followed by `to') causing harm or injury
"damaging to career and reputation"
"the reporter's coverage resulted in prejudicial publicity for the defendant"
2. damaging, negative
designed or tending to discredit, especially without positive or helpful suggestions
Source: WordNet® (An amazing lexical database of English)
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