The difference between Consummate and Utter

When used as verbs, consummate means to bring (a task, project, goal etc.) to completion, whereas utter means to say.

When used as adjectives, consummate means complete in every detail, perfect, absolute, whereas utter means outer.

Utter is also adverb with the meaning: further out.

check bellow for the other definitions of Consummate and Utter

Consummate as an adjective:

Complete in every detail, perfect, absolute.
Consummate as an adjective:

Highly skilled and experienced; fully qualified.

Consummate as a verb (transitive):

To bring (a task, project, goal etc.) to completion; to accomplish.
Consummate as a verb (transitive):

To make perfect, achieve, give the finishing touch.
Consummate as a verb (transitive):

To make (a marriage) complete by engaging in first sexual intercourse.

Examples:

"After the reception, he escorted her to the honeymoon suite to consummate their marriage."
Consummate as a verb (intransitive):

To become perfected, receive the finishing touch.

Utter as an adjective (now, _, poetic, literary):

Outer; furthest out, most remote.
Utter as an adjective (obsolete):

Outward.
Utter as an adjective:

Absolute, unconditional, total, complete.

Examples:

"utter ruin; utter darkness"

Utter as a verb (transitive):

To say

Examples:

"Don't you utter another word!"
Utter as a verb (transitive):

To use the voice

Examples:

"Sally uttered a sigh of relief."

"The dog uttered a growling bark."
Utter as a verb (transitive):

To make speech sounds which may or may not have an actual language involved

Examples:

"Sally is uttering some fairly strange things in her illness."
Utter as a verb (transitive):

To make (a noise)

Examples:

"Sally's car uttered a hideous shriek when she applied the brakes."
Utter as a verb (legal, transitive):

To put counterfeit money, etc., into circulation