Attenuate is a related term of extend.

In lang=en terms the difference between attenuate and extend

is that attenuate is to rarefy while extend is to straighten (a limb).

As verbs the difference between attenuate and extend

is that attenuate is to reduce in size, force, value, amount, or degree while extend is to increase in extent.

As an adjective attenuate

is (botany|of leaves) gradually tapering into a petiole-like extension toward the base.

Unfeeling is a related term of heartless.

As adjectives the difference between unfeeling and heartless

is that unfeeling is without emotion or sympathy while heartless is without a heart; specifically, without feeling, emotion, or concern for others; uncaring.

Characteristic is a related term of appropriate.

As adjectives the difference between characteristic and appropriate

is that characteristic is being a distinguishing feature of a person or thing while appropriate is (obsolete) set apart for a particular use or person; reserved.

As a noun characteristic

is a distinguishable feature of a person or thing.

As a verb appropriate is

(archaic) to make suitable; to suit.

Elusory is a related term of equivocating.

As an adjective elusory

is that tends to elude.

As a verb equivocating is

.

Number is a related term of bulk.

In countable|lang=en terms the difference between number and bulk

is that number is (countable) a performance; especially, a single song or song and dance routine within a larger show while bulk is (countable) a cargo or any items moved or communicated in the manner of cargo.

As nouns the difference between number and bulk

is that number is (countable) an abstract entity used to describe quantity while bulk is size, mass or volume.

As verbs the difference between number and bulk

is that number is to label (items) with numbers; to assign numbers to (items) while bulk is to appear or seem to be, as to bulk or extent.

As adjectives the difference between number and bulk

is that number is (numb) while bulk is being large in size, mass or volume (of goods, etc).

Aversion is a related term of displeasure.

As nouns the difference between aversion and displeasure

is that aversion is aversion while displeasure is a feeling of being displeased with something or someone; dissatisfaction; disapproval.

Inventiveness is a related term of proficiency.

As nouns the difference between inventiveness and proficiency

is that inventiveness is the quality of being inventive; the faculty of inventing while proficiency is ability, skill, competence.

Rude is a related term of vicious.

As a proper noun rude

is settlement in croatia, near zagreb.

As an adjective vicious is

pertaining to vice; characterised by immorality or depravity.

Appetite is a related term of fondness.

As nouns the difference between appetite and fondness

is that appetite is desire for, or relish of, food or drink; hunger while fondness is the quality of being fond.

Scratched is a related term of lame.

As an adjective scratched

is produced by scratching.

As a verb scratched

is (scratch).

As a noun lame is

sea.