忍びやか (shinobiyaka) Japanese meaning: stealthy | KotomoraI left the room stealthily.
I heard quiet, stealthy footsteps from the hallway.
しのびやかUsage25%
Kana spelling is acceptable and may be used for clarity or in informal writing.
Etymology
Derived from the verb 忍ぶ (しのぶ, 'to conceal oneself, to endure') with the adjectival suffix やか, forming a na-adjective meaning 'in a stealthy manner'.
