concerned with work or important matters rather than play or trivialities

of great consequence

causing fear or anxiety by threatening great harm

appealing to the mind

completely lacking in playfulness

requiring effort or concentration; complex and not easy to answer or solve

traditional genre of music conforming to an established form and appealing to critical interest and developed musical taste

acting with or showing thought and good sense

the trait of being serious

in a serious manner

to a severe or serious degree

an earnest and sincere feeling

the quality of arousing fear or distress

the trait of being serious