elusive

difficult to catch, hold onto, or understand; hard to grasp or achieve

difícil de atrapar, entender o alcanzar

• an elusive idea/concept

Collocations elusive answer · elusive truth

• The concept of time is elusive and hard to define.

  El concepto del tiempo es difícil de definir y captar.

tending to evade or escape from being caught, understood, or remembered; hard to pin down

que tiende a evadirse o escapar de ser capturado, entendido o recordado

• an elusive memory

Collocations elusive memory · elusive suspect

• The suspect was elusive and managed to avoid capture.

  El sospechoso era esquivo y logró evitar su captura.