tendency vs inclination

tendency and inclination both are nouns.

Word	Noun	Adjective	Verb	Adverb
tendency	Yes	No	No	No
inclination	Yes	No	No	No

As nouns, tendency and inclination are synonyms defined as:

tendency and inclination: a characteristic likelihood of or natural disposition toward a certain condition or character or effect

As nouns, tendency and inclination are synonyms defined as:

tendency and inclination: an attitude of mind especially one that favors one alternative over others

Other synonyms of tendency include disposition.

As nouns, inclination is a hypernym of tendency; that is, inclination is a word with a broader meaning than tendency:

tendency (noun)	inclination (noun)
a characteristic likelihood of or natural disposition toward a certain condition or character or effect	the act of inclining; bending forward
an attitude of mind especially one that favors one alternative over others	a characteristic likelihood of or natural disposition toward a certain condition or character or effect
an inclination to do something	the property possessed by a line or surface that departs from the vertical
a general direction in which something tends to move	an attitude of mind especially one that favors one alternative over others
	that toward which you are inclined to feel a liking
	(physics) the angle that a magnetic needle makes with the plane of the horizon
	(geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
	(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees