1) Being in a tense state 2) Edgy 3) High-strung 4) Highly strung 5) In suspense 6) Jittery 7) Jumpy 8) Nervy 9) Overly tense or sensitive 10) Restive 11) Strained 12) Tense 13) Too tight as a racket 14) Too tightly strung 15) Uptight 16) Very tense 1) Edgy 2) Jittery 3) Jumpy 4) Nervy 5) Restive 6) Tense 7) Uptight 
[adj] - too tightly strung
adjective too tightly strung; `an overstrung archery bow`
overly tense or sensitive; strained; on edge: Their nerves were badly overstrung. · (of a bow) strung too tightly.