suspicion

from The American Heritage® Dictionary of the English Language, 4th Edition

• n. The act of suspecting something, especially something wrong, on little evidence or without proof.
• n. The condition of being suspected, especially of wrongdoing.
• n. A state of uncertainty; doubt. See Synonyms at uncertainty.
• n. A minute amount or slight indication; a trace.
• transitive v. Nonstandard To suspect.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. The act of suspecting something or someone, especially of something wrong.
• n. The condition of being suspected.
• n. Uncertainty, doubt.
• n. A trace, or slight indication.
• n. The imagining of something without evidence.

from the GNU version of the Collaborative International Dictionary of English

• n. The act of suspecting; the imagination or apprehension of the existence of something (esp. something wrong or hurtful) without proof, or upon very slight evidence, or upon no evidence.
• n. Slight degree; suggestion; hint.
• transitive v. To view with suspicion; to suspect; to doubt.

from The Century Dictionary and Cyclopedia

• To regard with suspicion; suspect; mistrust; doubt.
• n. The act of suspecting; the feeling of one who suspects; the sentiment or passion which is excited by signs of evil, danger, or the like, without sufficient proof; the imagination of the existence of something, especially something wrong, without proof or with but slight proof.
• n. Thought.
• n. Suggestion; hint; small quantity; slight degree.
• n. Synonyms Jealousy, distrust, mistrust, doubt, fear, misgiving.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• n. being of a suspicious nature
• n. an impression that something might be the case
• n. doubt about someone's honesty
• n. the state of being suspected