As nouns the difference between assertiveness and perseverance

is that assertiveness is the quality of being self-assured and assertive while perseverance is perseverance (persistent determination to adhere to a course of action; insistence).

As verbs the difference between features and profile

is that features is (feature) while profile is .

As a noun features

is .

As verbs the difference between souring and improving

is that souring is while improving is .

As a noun souring

is (dated) any sour apple.

As an adjective improving is

getting better.

As a noun slog

is army, host.

As an adjective tedious is

boring, monotonous, time consuming, wearisome.

As adjectives the difference between putrid and gangrene

is that putrid is rotting, rotten, being in a state of putrefaction while gangrene is gangrenous.

As a verb gangrene is

.

As adjectives the difference between surreptitious and reticent

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while reticent is reluctant; reticent.

As nouns the difference between thraldom and slavery

is that thraldom is while slavery is an institution or social practice of owning human beings as property, especially for use as forced laborers.

As nouns the difference between casualties and disaster

is that casualties is while disaster is .

As an adjective adaptable

is capable of adapting or of being adapted.

As a noun stick is

(ireland) a member of the official ira.

As a proper noun stick is

(musici) the chapman stick, an electric musical instrument devised by emmett chapman.