1) Addle 2) Agitate 3) Annoy 4) Cark 5) Disconcert 6) Dismay 7) Faze 8) Irk 9) Miff 10) Rile 11) Roil 12) Ruffle 13) Unhinge 14) Unsettle 15) Upset 16) Worry 1) Cark 2) Discompose 3) Disorder 4) Disquiet 5) Disquiet greatly; agitate 6) Distract 7) Disturb 8) French word used in English 9) Ruffle 10) To bother or unsettle 11) To disturb 12) Trouble 13) Unhinge 14) Unsettle 15) Upset 
• (v. t.) To disturb; to agitate; to vex; to trouble; to disquiet. • (v. t.) To disorder; to confuse.
To cause a planet or satellite to deviate from a theoretically regular orbital motion.
To cause a celestial body, to deviate from its predicted orbit, usually under the gravitational influence of another celestial object.
Per·turb' transitive verb [ Latin perturbare , perturbatum ; per + turbare to disturb, from turba a disorder: confer Old French perturber . See Per- , and Turbid .] 1. To disturb; to agitate; to vex; to trouble; to disquiet. « Ye that ...
To cause a planet or satellite to deviate from a theoretically regular orbital motion.
To cause a planet or satellite to deviate from a theoretically regular orbital motion.
[v] - disturb or interfere with the usual path of an electron or atom 2. [v] - cause a celestial body to deviate from a theoretically regular orbital motion, esp. as a result of interposed or extraordinary gravitational pull 3. [v] - disturb in mind or make uneasy or cause to be worried or alarmed 4. [v] - throw into great confus...
perturb 1. To disturb or disquiet greatly in mind; to agitate. 2. To throw into great disorder; to derange. 3. To make uneasy or anxious. 4. To throw into great confusion. 5. In astronomy, to cause perturbation in the orbit of (a celestial body).
make someone anxious or unsettled