lament, keen -- (express grief verbally; "we lamented the death of the child")
Overview of adj keen
The adj keen has 5 senses
acute, discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp -- (having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations")