lamentable vs deplorable

lamentable and deplorable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
lamentable	No	Yes	No	No
deplorable	No	Yes	No	No

As adjectives, lamentable and deplorable are synonyms defined as:

Other synonyms of lamentable include distressing, pitiful, sad, sorry.

lamentable (adjective)	deplorable (adjective)
bad; unfortunate	bad; unfortunate
	of very poor quality or condition
	bringing or deserving severe rebuke or censure