weakling vs crybaby

weakling and crybaby both are nouns.

Word	Noun	Adjective	Verb	Adverb
weakling	Yes	No	No	No
crybaby	Yes	No	No	No

As nouns, crybaby is a hyponym of weakling; that is, crybaby is a word with a more specific, narrower meaning than weakling:

Other hyponyms of weakling include namby-pamby, softie, softy, chicken, wimp.

weakling (noun)	crybaby (noun)
a person who is physically weak and ineffectual	a person given to excessive complaints and crying and whining
	a person who lacks confidence, is irresolute and wishy-washy