Meaning of suspicious

sus•pi•cious

Pronunciation: (su-spish'us), [key]
— adj.
  1. tending to cause or excite suspicion; questionable: suspicious behavior.
  2. inclined to suspect, esp. inclined to suspect evil; distrustful: a suspicious tyrant.
  3. full of or feeling suspicion.
  4. expressing or indicating suspicion: a suspicious glance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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