As nouns the difference between observance and fidelity

is that observance is the practice of complying with a law, custom, command or rule while fidelity is faithfulness to one's duties.

As nouns the difference between spitefulness and malignancy

is that spitefulness is (uncountable) the state or quality of being spiteful while malignancy is the state of being malignant or diseased.

As nouns the difference between surplus and wealth

is that surplus is that which remains when use or need is satisfied, or when a limit is reached; excess; overplus while wealth is (obsolete) weal; welfare; prosperity; good; well-being; happiness; joy.

As an adjective surplus

is being or constituting a surplus; more than sufficient; as, surplus revenues; surplus population; surplus words.

As a noun airstrip

is an aircraft landing field, usually with one runway and only basic facilities.

As an acronym base is

b'''uilding'', '''''a'''ntenna-tower'', '''''s'''pan'', '''''e arth .

As adjectives the difference between distant and unsympathetic

is that distant is far off (physically, logically or mentally) while unsympathetic is not sympathetic.

As nouns the difference between stricken and yellow

is that stricken is knitting or stricken can be (de-form-noun) while yellow is (yellow) the colour of gold or butter; the colour obtained by mixing green and red light, or by subtracting blue from white light.

As an adjective yellow is

having yellow as its colour.

As a verb yellow is

to become yellow or more yellow.

As nouns the difference between adornment and finery

is that adornment is a decoration; that which adorns while finery is (obsolete) fineness; beauty.

As nouns the difference between circumstances and misfortune

is that circumstances is while misfortune is (uncountable) bad luck.

As nouns the difference between disagreement and brawl

is that disagreement is an argument or debate while brawl is a fight, usually with a large number of people involved.

As a verb brawl is

to engage in a brawl; to fight or quarrel.

As nouns the difference between abnormality and eccentricity

is that abnormality is the state or quality of being abnormal; variation; irregularity while eccentricity is the quality of being eccentric; any eccentric behaviour.