lubber vs landsman

lubber and landsman both are nouns.

Word	Noun	Adjective	Verb	Adverb
lubber	Yes	No	No	No
landsman	Yes	No	No	No

As nouns, lubber and landsman are synonyms defined as:

lubber and landsman: an inexperienced sailor; a sailor on the first voyage

Other synonyms of lubber include landlubber.

lubber (noun)	landsman (noun)
an awkward stupid person	an inexperienced sailor; a sailor on the first voyage
an inexperienced sailor; a sailor on the first voyage	a person who lives and works on land