heartbroken

As an adjective heartbroken

is suffering from sorrow, especially after a failed romance.

As a verb mope is

to carry oneself in a depressed, lackadaisical manner; to give oneself up to low spirits; to pout.

As a noun mope is

a dull, spiritless person.

As adjectives the difference between heartbroken and poignant

is that heartbroken is suffering from sorrow, especially after a failed romance while poignant is (obsolete|of a weapon etc) sharp-pointed; keen.

As adjectives the difference between heartbroken and false

is that heartbroken is suffering from sorrow, especially after a failed romance while false is (label) one of two states of a boolean variable; logic.

As adjectives the difference between sorrowful and heartbroken

is that sorrowful is of a person, full of sorrow; exhibiting sorrow; sad; dejected; distressed; distraught while heartbroken is suffering from sorrow, especially after a failed romance.

As adjectives the difference between heartbroken and dismal

is that heartbroken is suffering from sorrow, especially after a failed romance while dismal is disappointingly inadequate.

As adjectives the difference between heartbroken and undefined

is that heartbroken is suffering from sorrow, especially after a failed romance while undefined is lacking a definition or value.

As adjectives the difference between disillusioned and heartbroken

is that disillusioned is disappointed; experiencing disillusionment; having lost one's illusions while heartbroken is suffering from sorrow, especially after a failed romance.

As a verb disillusioned

is (disillusion).

Crestfallen is a related term of heartbroken.

As adjectives the difference between crestfallen and heartbroken

is that crestfallen is sad because of a recent disappointment while heartbroken is suffering from sorrow, especially after a failed romance.

As an adjective heartbroken

is suffering from sorrow, especially after a failed romance.

As a verb saddened is

(sadden).

As a verb sadden

is to make sad or unhappy.

As an adjective heartbroken is

suffering from sorrow, especially after a failed romance.