As verbs the difference between desolate and despair

is that desolate is to deprive of inhabitants while despair is (obsolete) to give up as beyond hope or expectation; to despair of.

As an adjective desolate

is deserted and devoid of inhabitants.

As a noun despair is

loss of hope; utter hopelessness; complete despondency.

As adjectives the difference between oxidized and rusty

is that oxidized is that has reacted with oxygen, or been modified by oxidation while rusty is affected by rust.

As a verb oxidized

is (oxidize).

As adjectives the difference between concerned and discouraged

is that concerned is showing concern while discouraged is having lost confidence or hope; dejected; disheartened.

As verbs the difference between concerned and discouraged

is that concerned is (concern) while discouraged is (discourage).

As a verb indulge

is : to yield to a temptation or desire.

As a noun gluttony is

the vice of eating to excess.

As a noun valuer

is a person who valuates; an assessor or appraiser.

As an adjective undefined is

lacking a definition or value.

As a noun notoriety

is the condition of being infamous or notorious.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun fear

is grass.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As an adjective eager

is (obsolete) sharp; sour; acid.

As a noun eager

is (tidal bore).

As a verb drive is

.

As a noun polymer

is polymer.

As an adjective false is

(label) one of two states of a boolean variable; logic.