poignant

As an adjective poignant

is (obsolete|of a weapon etc) sharp-pointed; keen.

As a noun null is

zero, nil; the cardinal number before einn.

As an adjective poignant

is sharp-pointed; keen.

As a noun tragedy is

a drama or similar work, in which the main character is brought to ruin or otherwise suffers the extreme consequences of some tragic flaw or weakness of character.

As an adjective poignant

is sharp-pointed; keen.

As a noun sadness is

the state or emotion of being sad.

As adjectives the difference between flamboyant and poignant

is that flamboyant is showy, bold or audacious in behaviour, appearance, etc while poignant is (obsolete|of a weapon etc) sharp-pointed; keen.

As a noun flamboyant

is a showy tropical tree, the royal poinciana (delonix regia ).

As adjectives the difference between ambivalent and poignant

is that ambivalent is simultaneously]] experiencing or expressing [[oppose|opposing or contradictory feelings, beliefs, or motivations while poignant is (obsolete|of a weapon etc) sharp-pointed; keen.

As adjectives the difference between poignant and terse

is that poignant is sharp-pointed; keen while terse is polished, burnished; smooth; fine, neat, spruce.

As adjectives the difference between poignant and regretful

is that poignant is sharp-pointed; keen while regretful is full of feelings of regret, indulging in regrets.

As an adjective poignant

is sharp-pointed; keen.

As a noun lament is

an expression of grief, suffering, or sadness.

As a verb lament is

to express grief; to weep or wail; to mourn.

As an adverb sharply

is in a sharp manner; pertaining to precision.

As an adjective poignant is

(obsolete|of a weapon etc) sharp-pointed; keen.

As adjectives the difference between brittle and poignant

is that brittle is inflexible, liable to break or snap easily under stress or pressure while poignant is (obsolete|of a weapon etc) sharp-pointed; keen.

As a noun brittle

is (uncountable) a confection of caramelized sugar and nuts.