Mutilation is a related term of gash.

As nouns the difference between mutilation and gash

is that mutilation is the act of mutilating or the state of being mutilated while gash is a deep cut.

As a verb gash is

to make a deep, long cut, to slash.

Possessed is a related term of irrational.

As adjectives the difference between possessed and irrational

is that possessed is by evil spirits while irrational is not rational; unfounded or nonsensical.

As a verb possessed

is (possess).

As a noun irrational is

a real number that can not be expressed as the quotient of two integers, an irrational number.

Rapidity is a related term of shrewdness.

As nouns the difference between rapidity and shrewdness

is that rapidity is speed, swiftness; the condition of being rapid while shrewdness is the quality of being shrewd.

Shapeless is a related term of insolent.

As adjectives the difference between shapeless and insolent

is that shapeless is without shape while insolent is insulting in manner or words.

Shy is a related term of constrained.

As adjectives the difference between shy and constrained

is that shy is easily frightened; timid while constrained is within close bounds; confined.

As verbs the difference between shy and constrained

is that shy is to avoid due to timidness or caution while constrained is (constrain).

As a noun shy

is an act of throwing.

Solid is a related term of definite.

As an acronym solid

is (programming|object-oriented).

As an adjective definite is

having distinct limits.

As a noun definite is

(obsolete) anything that is defined or determined.

Forlorn is a synonym of lone.

As a verb forlorn

is (obsolete).

As an adjective forlorn

is abandoned, left behind, deserted.

As a proper noun lone is

.

Disagreeing is a related term of improper.

As verbs the difference between disagreeing and improper

is that disagreeing is while improper is (obsolete|transitive) to appropriate; to limit.

As an adjective improper is

unsuitable to needs or circumstances; inappropriate; inapt.

Thought-provoking is a related term of engrossing.

As a verb engrossing is

present participle of engross.

As an adjective engrossing is

utterly consuming one's time and attention.

As a noun engrossing is

the act of one who engrosses, or buys up wholesale.

Clarity is a synonym of plainness.

As nouns the difference between clarity and plainness

is that clarity is the state, or measure of being clear, either in appearance, thought or style; lucidity while plainness is (uncountable) the condition of being plain (in all senses).