1. quietly, softly

with low volume

Example Sentences:
'speak softly but carry a big stick'
'she spoke quietly to the child'
'the radio was playing softly'

• softly

2. quietly

with little or no sound

Example Sentences:
'the class was listening quietly and intently'
'she was crying quietly'

3. quiet, quietly

with little or no activity or no agitation (quiet' is a nonstandard variant for quietly')

Example Sentences:
'her hands rested quietly in her lap'
'the rock star was quietly led out the back door'
'sit here as quiet as you can'

• quiet

4. quietly, restfully

in a restful manner

Example Sentences:
'the streets are restfully sunny and still for the town is at mass'

• restfully