Other correct spellings and their meanings are-

Successful- accomplishing a desired aim or result

Sledge- a vehicle on runners for conveying loads or passengers over snow or ice, often pulled by draught animals

Superficial- existing or occurring at or on the surface

Undoubtedly- without doubt; certainly

Unique- being the only one of its kind; unlike anything else

Unforgettable- impossible to forget; very memorable

Hence, option D is the correct answer.

Aesthetic- shockingly bad or excessive

Outrageous- shockingly bad or excessive

Original- present or existing from the beginning; first or earliest

Hence, option B is the correct answer.

Among the given options only option D has the correct spelling of the word. "Obstacle" is the correct word and it means a thing that blocks one's way or prevents or hinders progress.

The correctly spelt word is “Engineer” which means a persons who designs , builds or maintains engines , machines or structures

Hence, option A is the correct answer.

 Option C has the correctly spelt word “Sovereignty” which means the quality of having supreme power or authority.

Let’s see the spelling and meaning of other words:

Itinerary : a plan of a journey

Grievance : a complaint against an injustice

Renaissance : a revival of or renewed interest in something

The incorrectly spelt word is” Itinerent” and the correctly spelt word is “Itinerant” which means traveller.

Let’s understand the meaning of other words:

Influence: a power to affect persons or events especially power based on prestige etc

Ignorance: lack of knowledge

Impeach: to charge someone of misconduct

Hence, option B is the correct answer.

The incorrectly spelt word is “Diliver” and the correct spelling is “Deliver” which means to bring or transport

Let’s understand the meaning of the other words:

Deter: to prevent

Denial: the act of refusing to comply (as with a request)

Hence, option D is the correct answer.

Option B has the correctly spelt word. Encouragement means

Correct spelling of other words along with their meanings:

Embarrassment: The shame you feel when your inadequacy or guilt is made public

Conscientious: Characterized by extreme care and great effort

Commotion: A disorderly outburst or tumult