Definition: A period of life when a person is old and often has a decline in mental abilities.

Example: In his dotage, he often forgot simple things like where he put his keys.

Definition: A way of thinking where a person accepts two contradictory ideas at the same time, often used to deceive oneself.

Example: In a society where doublethink is common, people may believe that war is peace and freedom is slavery.

Definition: To feel uncertain or unsure about something.

Example: I doubt that he will come to the party tonight.

Definition: A feeling of uncertainty or lack of trust about something or someone.

Example: She expressed her doubt about the plan's success.

Definition: To feel uncertain or unsure about something; to question the truth or reliability of something.

Example: I doubt that he will come to the party tonight.

Definition: Able to be questioned or doubted; uncertain or suspicious about something.

Example: His explanation was doubtable, leaving many people confused about the truth.

Definition: A person who is uncertain or skeptical about something.

Example: She is a doubter when it comes to the effectiveness of the new policy.

Definition: To have uncertainty or lack of confidence about something.

Example: She began to doubt her ability to finish the project on time.

Definition: Feeling uncertain or unsure about something; not confident in the truth or reliability of something.

Example: She was doubtful about the success of the project after hearing the feedback.

Definition: The condition of being unsure or having uncertainty about something.

Example: Her doubtfulness about the project made her hesitant to proceed.

Definition: Without any doubt; certain or sure about something.

Example: She is doubtless the best candidate for the job.

Definition: Without any doubt; certainly or probably true.

Example: Doubtless, she will succeed in her new job.

Definition: In a way that is certain and without any doubt.

Example: She is doubtlessly the best player on the team.

Definition: The state of being certain or free from doubt.

Example: Her doubtlessness about the decision made it easier for the team to move forward.