sighingly

As a noun terms

is .

As an adverb sighingly is

in a sighing way; with sighs.

As a noun sigh

is a deep and prolonged audible inspiration or respiration of air, as when fatigued, frustrated, grieved, or relieved; the act of sighing.

As a verb sigh

is to inhale a larger quantity of air than usual, and immediately expel it; to make a deep single audible respiration, especially as the result or involuntary expression of fatigue, exhaustion, grief, sorrow, frustration, or the like.

As an interjection sigh

is an expression of fatigue, exhaustion, grief, sorrow, frustration, or the like, often used in casual written contexts.

As an adverb sighingly is

in a sighing way; with sighs.