what are complex sentences i can use for the following words;

Appeasingly
Cadence
Disconsolate
Draft animal
Fastidiouness
Gaunt
Ignominiously
Introspective
Malignant
Malingerer
Placatingly
Primordial
Reproof
Retrogression
Vicarious

I assume you've looked these words up in a dictionary and know their meanings. :-)

A complex sentence has one independent clause and one or more dependent clauses.

http://www.ucalgary.ca/UofC/eduweb/grammar/course/sentence/2_5c.htm

For your first sentence, you could write:

Although Ben appeasingly tried to compromise with his sister, she wouldn't budge and insisted that they do things her way.

Complex sentences are sentences that contain an independent clause and at least one dependent clause. Here are complex sentences using the given words:

1. Appeasingly: Although she was tired, she smiled appeasingly to calm the situation.
Explanation: To create a complex sentence, combine an independent clause ("she smiled appeasingly") with a dependent clause ("Although she was tired").

2. Cadence: The rhythmic cadence of the music carried us away as we danced.
Explanation: Combine an independent clause ("The rhythmic cadence of the music carried us away") with a dependent clause ("as we danced").

3. Disconsolate: Despite her friends' attempts to comfort her, she remained disconsolate.
Explanation: Combine an independent clause ("she remained disconsolate") with a dependent clause ("Despite her friends' attempts to comfort her").

4. Draft animal: The farmer's horse, a strong draft animal, pulled the plow through the field.
Explanation: Combine an independent clause ("The farmer's horse pulled the plow through the field") with a dependent clause ("a strong draft animal").

5. Fastidiousness: The chef's fastidiousness regarding food hygiene was evident in his meticulous handwashing.
Explanation: Combine an independent clause ("The chef's fastidiousness regarding food hygiene was evident") with a dependent clause ("in his meticulous handwashing").

6. Gaunt: After weeks of starvation, his face appeared gaunt and sunken.
Explanation: Combine an independent clause ("his face appeared gaunt and sunken") with no dependent clause.

7. Ignominiously: The disgraced politician was ignominiously removed from office.
Explanation: Combine an independent clause ("The disgraced politician was removed from office") with no dependent clause.

8. Introspective: Mary's introspective nature led her to reflect on her life choices.
Explanation: Combine an independent clause ("Mary's introspective nature led her to reflect") with a dependent clause ("on her life choices").

9. Malignant: The doctor informed the patient that the tumor was malignant, requiring immediate surgery.
Explanation: Combine an independent clause ("The doctor informed the patient that the tumor was malignant") with a dependent clause ("requiring immediate surgery").

10. Malingerer: Despite his reputation as a malingerer, Graham was genuinely ill this time.
Explanation: Combine an independent clause ("Graham was genuinely ill this time") with a dependent clause ("Despite his reputation as a malingerer").

11. Placatingly: She spoke placatingly to diffuse the tension between the two arguing colleagues.
Explanation: Combine an independent clause ("She spoke placatingly to diffuse the tension") with a dependent clause ("between the two arguing colleagues").

12. Primordial: The discovery of fossils revealed the existence of primordial life forms on Earth.
Explanation: Combine an independent clause ("The discovery of fossils revealed the existence of primordial life forms on Earth") with no dependent clause.

13. Reproof: Upon hearing his father's reproof, the child felt ashamed and apologized.
Explanation: Combine an independent clause ("the child felt ashamed and apologized") with a dependent clause ("Upon hearing his father's reproof").

14. Retrogression: After years of progress, the sudden policy change resulted in retrogression for the community.
Explanation: Combine an independent clause ("the sudden policy change resulted in retrogression for the community") with no dependent clause.

15. Vicarious: Through his vivid descriptions, the author allowed the readers to experience a vicarious adventure.
Explanation: Combine an independent clause ("the author allowed the readers to experience") with a dependent clause ("a vicarious adventure").