HackerVoca

still : motionless, stationary, tranquil, calm, peaceful,
placid, pacific, serene
stimulating* : restorative1 / / adjective formal
making you feel healthier or stronger: the restorative power of long walks
, refreshing, energizing, invigorating, reinvigorating
stimulus : incentive, incitement, stimulation, provocation,
stimulant crouch / verb [intransitive]

1 also crouch down to lower your body close to the ground by bending your knees completely: My legs began to ache from crouching for so long. | The boy crouched down to fix his sandal.

2 if an animal crouches it sits as low as possible, often because it is frightened or is going to attack something: The cat crouched, its eyes following the mouse as it scurried away.

stingy / adjective

1 informal not generous, especially with money, when you can easily afford to be: Jim's too stingy to give money to charity.

2 a stingy amount of something, especially food, is too small to be enough: The helpings here are pretty stingy.

stingily adverb
stinginess noun [uncountable]