1) Alarm 2) Cark 3) Depression 4) Dismay 5) Disturb 6) Excitability 7) Inquiet 8) Misgiving 9) Nervousness 10) Perturb 11) Surprise 12) Unease 13) Uneasiness 14) Unhinge 15) Unrest 16) Unsettle 17) Worry 1) Anxiety 2) Anxiousness 3) Lack of tranquillity 4) Restlessness 5) Uneasiness 
• (a.) Deprived of quiet; impatient; restless; uneasy. • (v. t.) To render unquiet; to deprive of peace, rest, or tranquility; to make uneasy or restless; to disturb. • (n.) Want of quiet; want of tranquility in body or mind; uneasiness; restlessness; disturbance; anxiety.
Dis·qui'et adjective Deprived of quiet; impatient; restless; uneasy. [ R.] Shak. Dis·qui'et noun Want of quiet; want of tranquility in body or mind; uneasiness; restlessness; disturbance; anxiety. Swift. Dis·qui'et transitive verb [ imperfect & past participle Disquieted ; present participle & verbal noun Disquieting .] To render unquiet; to deprive of peace, rest, or tranquility; to make uneasy or restless; to disturb. « Why art th...
[n] - the trait of seeming ill at ease
unease noun the trait of seeming ill at ease
lack of calm, peace, or ease; anxiety; uneasiness.