harmless

adjective

1 a harmless substance:

safe, innocuous, benign, gentle, mild, wholesome, non-dangerous, non-toxic, non-poisonous, non-irritant, non-addictive;

rare innoxious.

▷antonyms dangerous; harmful.

2 he seems harmless enough:

inoffensive, innocuous, unobjectionable, unexceptionable, unoffending, tame, gentle.

▷antonyms objectionable.

word toolkit
harmless fun drug bacteria flirting creature prank	benign neglect lesion tumour disease growth dictatorship	non-toxic paint cleaning products compound ingredients concentration chemicals

harmless Oxford Dictionary of English