1.
Something that is ~ does not have any bad effects, especially on people’s health.
Industry has been working at developing ~ substitutes for these gases...
This experiment was ~ to the animals.
= safe
? harmful
ADJ
~ly
Another missile exploded ~ly outside the town.
ADV: ADV with v
2.
If you describe someone or something as ~, you mean that they are not important and therefore unlikely to annoy other people or cause trouble.
He seemed ~ enough...
I would not want to deny them a ~ pleasure.
ADJ
~ly
It started ~ly enough, with a statement from the Secretary of State for Social Security.
ADV: ADV after v