confused

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Being unable to think with clarity or act with understanding and intelligence.
• adjective Lacking logical order or sense.
• adjective Chaotic; jumbled.

from The Century Dictionary.

• Lacking orderly arrangement of parts; involved; disordered.
• In entomology, tending to become united in one mass, as parts of a jointed organ: as, antennæ with confused outer joints.
• In logic, indistinct: applied especially to an idea whose parts are not clearly distinguished. See clear, a., 6, and distinct.
• Perplexed; embarrassed; disconcerted.
• Synonyms Indiscriminate, indistinct, intricate, deranged.
• Mystified, bewildered, flurried, abashed, discomposed, agitated, mortified.

from the GNU version of the Collaborative International Dictionary of English.

• adjective same as confounded.
• adjective lacking orderly continuity.
• adjective thrown into disorder.
• adjective having lost one's bearings physically or mentally.
• adjective not marked by fine distinctions.
• adjective causing bafflement and confusion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective chaotic, jumbled or muddled
• adjective making no sense; illogical
• adjective embarrassed
• verb Simple past tense and past participle of confuse.

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

• adjective having lost your bearings; confused as to time or place or personal identity
• adjective lacking orderly continuity
• adjective perplexed by many conflicting situations or statements; filled with bewilderment
• adjective mentally confused; unable to think with clarity or act intelligently
• adjective thrown into a state of disarray or confusion