pathological C1 Topic:Health & Medicine US /ˌpæθ.əˈlɑd͡ʒ.ɪ.kəl/ UK /ˌpæθ.əˈlɒd͡ʒ.ɪ.kəl/ See IPA manual Freq #19083 Meanings 1 adj related to disease or to the study of disease The scan showed no pathological change in the tissue. 2 adj extreme, compulsive, or caused by a mental disorder He was a pathological liar who invented details even when the truth was harmless. 3 adj so unusual or badly behaved that it exposes weaknesses in a system or theory The algorithm slowed down only on a pathological input case. Thesaurus Synonyms 1 adj · related to disease or to... diseasedpathologic 2 adj · extreme, compulsive, or... compulsiveabnormal 3 adj · so unusual or badly behaved... degenerateabnormal More clinical ↔ Opposites healthynormalwell-behaved Word family Derived forms pathologicallynonpathologicalpathologic Related forms pathologypathogen Common collocations pathological liar Adjective + noun Etymology From pathology + -ical; pathology comes through French from Greek pathos (suffering, disease) and -logia (study). Topics Health & Medicine External links Cambridge Dictionary Wiktionary Google Images # pathological **Type:** Word **Level:** C1 **Part of speech:** adj **IPA (US):** /ˌpæθ.əˈlɑd͡ʒ.ɪ.kəl/ **IPA (UK):** /ˌpæθ.əˈlɒd͡ʒ.ɪ.kəl/ **Frequency rank:** 19083 ## Meanings 1. related to disease or to the study of disease 2. extreme, compulsive, or caused by a mental disorder 3. so unusual or badly behaved that it exposes weaknesses in a system or theory ## Examples - The scan showed no pathological change in the tissue. - He was a pathological liar who invented details even when the truth was harmless. - The algorithm slowed down only on a pathological input case. ## Synonyms - diseased - pathologic - compulsive - abnormal - clinical ## Antonyms - healthy - normal - well-behaved ## Derived Forms - pathologically - nonpathological - pathologic ## Related Forms - pathology - pathogen ## Etymology From pathology + -ical; pathology comes through French from Greek pathos (suffering, disease) and -logia (study). ## Topics - Health & Medicine markdown