1) The tautologicalness of his statements made it difficult to follow his argument.

2) The tautologicalness of the definition was evident from the repetition of the same idea.

3) His speech was filled with tautologicalness, as he kept repeating himself.

4) The tautologicalness of the phrase “exact same” was pointed out by the teacher.

5) The tautologicalness of her reasoning became apparent as she continued to explain.

6) The tautologicalness of the instructions confused the students.

7) The tautologicalness of the slogan made it ineffective in capturing attention.

8) The tautologicalness of his writing style made his essay difficult to read.

9) The tautologicalness of their relationship was obvious to everyone around them.

10) The tautologicalness of the theory was criticized by experts in the field.