able to float; able to bounce back after a setback; cheerful

glowing with intense heat; very bright; describing a lightbulb that produces light with a filament in a vacuum

not harmful; gentle; good-natured

dark; gloomy; misty; hard to understand

unceasing; never stopping

giving vigor to; enlivening; filling with energy

not letting light through; not transparent; hard to understand

tyrannical; hard to take; mentally or physically distressing

filled with life; lively; seeming alive

in agreement; harmonious; corresponding