high-pitched

adjective3

1. •
   Of a sound, having a high pitch.

   • With a "peep" from a high-pitched whistle, the train would leave by the crossover to the down line, […]. — 1954
2. •
   Of a steam locomotive boiler, placed higher than usual.

   • The 2-6-2s have very high-pitched boilers in order that the grate shall clear the radial axle and also the trailing coupled wheels. — 1960
3. •
   (figurative, old-fashioned) Haughty.