ac·ro·bat 
(ăkrə-băt′)
(ăkrə-băt′)n.
1. One who is skilled in feats of balance and agility in gymnastics.
2. One who changes one's viewpoint on short notice in response to the circumstances.
[French acrobate, from Greek akrobatēs : akros, high; see ACRO- + bainein, bat-, to walk; see gwā- in the Appendix of Indo-European roots.]
ac′ro·batic adj.
ac′ro·bati·cal·ly adv.