say it: PET-ee-nuhs
pettiness is a noun meaning "narrowness of mind or ideas or views". It carries 3 recorded senses.
narrowness of mind or ideas or views
the quality of being unimportant and petty or frivolous
lack of generosity in trifling matters
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for pettiness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.