piteous vs hapless

piteous and hapless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
piteous	No	Yes	No	No
hapless	No	Yes	No	No

As adjectives, piteous and hapless are synonyms defined as:

Other synonyms of piteous include miserable, misfortunate, pathetic, pitiable, pitiful, poor, wretched.

piteous (adjective)	hapless (adjective)
deserving or inciting pity	deserving or inciting pity