Gratuitously Meaning in Bengali

What is the meaning of word Gratuitously in Bengali/Bangla ?

Meaning of Gratuitously in Bangla is : অযৌক্তিকভাবে (O . j o u^ k . t i k . bh a . b e)

Defenition of word Gratuitously

Example

artifacts were gratuitously destroyed

Other Meaning of Gratuitously