genus

As an adjective impractical

is not practical; impracticable.

As a noun genus is

.

As an adjective worn

is damaged and shabby as a result of much use.

As a verb worn

is .

As a noun genus is

.

As an adjective improper

is unsuitable to needs or circumstances; inappropriate; inapt.

As a verb improper

is (obsolete|transitive) to appropriate; to limit.

As a noun genus is

.

Genus is a related term of school.

As nouns the difference between genus and school

is that genus is while school is a group of fish or a group of marine mammals such as porpoises, dolphins, or whales or school can be (us|canada)  an institution dedicated to teaching and learning; an educational institution.

As a verb school is

(of fish) to form into, or travel in a school or school can be to educate, teach, or train (often, but not necessarily, in a school).

As nouns the difference between breed and genus

is that breed is all animals or plants of the same species or subspecies while genus is a rank in the classification of organisms, below family and above species; a taxon at that rank.

As a verb breed

is to produce offspring sexually; to bear young.

Genus is a related term of stamp.

As nouns the difference between genus and stamp

is that genus is while stamp is an act of stamping the foot, paw or hoof.

As a verb stamp is

to step quickly and heavily, once or repeatedly.

As nouns the difference between genus and description

is that genus is a rank in the classification of organisms, below family and above species; a taxon at that rank while description is a sketch or account of anything in words; a portraiture or representation in language; an enumeration of the essential qualities of a thing or species.

As nouns the difference between genus and debt

is that genus is while debt is an action, state of mind, or object one has an obligation to perform for another, adopt toward another, or give to another.

As a noun genus

is .

As an adjective unsuitable is

not suitable; unfit; inappropriate.