gratuitously
/ɡrəˈtʃuːɪtəsli/adverb1Without good reason; unjustifiably: artefacts were gratuitously destroyed gratuitously insulting remarks...- She now regrets gratuitously slating other creative people.
- The government is increasingly accepting stress as an illness and as a result it is repeatedly and gratuitously used as an excuse for society to hide behind.
- In real diplomacy you don't gratuitously insult allies you might need in the future.
2Free of charge: his care was provided gratuitously...- State Education was entirely free; and all school equipment was gratuitously supplied.
- He described Gueret's views as a "full-frontal, hypocritical, misinformed and gratuitously insulting attack".
- Bread was given away gratuitously by a vendor who was left with scores of hard dough he was unable to sell.