serious

As an adjective serious

is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a noun grin is

.

As an adjective serious

is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a verb tense is

.

As an adjective serious

is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a noun focus is

a point at which reflected or refracted rays of light converge.

As a verb focus is

to cause (rays of light, etc) to converge at a single point.

As adjectives the difference between zany and serious

is that zany is unusual and bizarre in a funny, comical way; outlandish; clownish while serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a noun zany

is (obsolete) a fool or clown especially one whose business on the stage was to imitate foolishly the actions of the principal clown.

As a proper noun smart

is .

As an adjective serious is

without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As adjectives the difference between serious and dedicated

is that serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn while dedicated is devoted; loyal; conscientious.

As a verb dedicated is

past participle of lang=en.

As adjectives the difference between poor and serious

is that poor is with little or no possessions or money while serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a noun poor

is (with "the") those who have little or no possessions or money, taken as a group.

As adjectives the difference between tight and serious

is that tight is firmly held together; compact; not loose or open while serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As an adverb tight

is firmly, so as not to come loose easily.

As a verb tight

is (obsolete) to tighten.

As adjectives the difference between exigent and serious

is that exigent is urgent; needing immediate action while serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As a noun exigent

is (archaic) extremity; end; limit; pressing urgency.

As a verb quite

is .

As an adjective serious is

without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.