Difference between Happily and Quietly

HAPPILY vs QUIETLY: ADVERB

In a joyous manner
In a happy manner or state; in happy circumstances.
With address or dexterity; gracefully; felicitously; in a manner to insure success; with success.
By chance; perhaps.
By good chance; fortunately, successfully.
In an unexpectedly lucky way
With good will; in all happiness; willingly.
In a happy or cheerful manner; with happiness.

With little or no sound
With little or no activity or no agitation (`quiet' is a nonstandard variant for `quietly')
With low volume
In a restful manner
In a quiet state or manner; without motion; in a state of rest.
Noiselessly; silently; without remark or violent movement; in a manner to attract little or no observation.
In a quiet manner.

By good fortune; fortunately; luckily.
In a happy or pleasing way or state; in pleasant or fortunate circumstances; with happiness or joy.
With address, skill, dexterity, or aptness; dexterously; felicitously; aptly; gracefully.
By chance; peradventure; haply.
Synonyms Haply, Happily. Haply, now rarely used in prose, means by chance; happily, by a happy chance.
Prosperously, successfully, contentedly.

In a manner to attract little or no observation; without noise: as, he quietly left the room.
Calmly; tranquilly; without agitation or violent emotion; patiently.
Without tumult, alarm, dispute, or disturbance; peaceably: as, to live quietly.
In a quiet state or manner.

Comfortably, Pleasantly, Quietly, Gaily, Willingly, Enthusiastically, Gladly, Cheerfully, Joyfully, With happiness, Gayly, Mirthfully, Jubilantly, Blithely, Merrily

Delicately, Gently, Blithely, Coolly, Discretely, Cautiously, Happily, Stealthily, Calmly, Unobtrusively, Slowly, Discreetly, Silently, Restfully, Softly

Delightfully, Seamlessly, Happier, Happy, Readily, Comfortably, Pleasantly, Quietly, Gaily, Willingly, Gladly, Gayly, Mirthfully, Blithely, Merrily

Discreet, Humbly, Nicely, Comfortably, Secretly, Gently, Blithely, Coolly, Cautiously, Stealthily, Calmly, Slowly, Silently, Restfully, Softly

We are both happily starting the maintenance program.
You can definitely barhop happily on that street.
Brazil heist finally living happily and in peace.
Gobble them down happily along with your coworkers.
Shayna grew up dreaming about happily every after.
Politely say no and live your life happily.
We will happily recommend you at any opportunity.
Williams and Dunst, happily, are the real stars.
He happily gave up everything for us and when we realized this we happily give up everything for him.
There are enough retailers out there that will happily accommodate their customers and I will happily patronize them!

He just sat there quietly, and watched TV.
This pump quietly aerates eight gallons of water.
She quietly won and it left everyone speechless.
Move quietly and slip past the enemy patrols.
To describe a verb They are studying quietly.
Prescriptivism resists the latter; descriptivism quietly observes both.
The machines record what is happening in your heart and arteries, first as you sit quietly, and then as you stand quietly.
Tracy, as ever, is quietly impressive, more quietly than in later career and, compared to the older, more affected actor, more natural at thirty.
Would fail she quietly asked me to leave the room quietly clause and to tell how an action takes.
Our principal modeled walking in and sitting quietly, applauding appropriately, and exiting quietly.