1. (adverb) with low volume

• softly

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

• quiet

3. (adverb) in a restful manner

• restfully

1. (adverb) with low volume

• aloud
• loud
• loudly

2. (adverb) with little or no sound

• noisily

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

• unquietly

1. (adverb) with low volume

• soft

2. (adverb) with little or no sound

• quiet

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

• quiet

4. (adverb) in a restful manner

• relaxing
• reposeful
• restful