Standard Lemma guide

hypothyroidism

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/
  • /ˌhaɪpəʊˈθaɪɹɔɪˌdɪzəm/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The disease state caused by insufficient production of thyroid hormone by the thyroid gland.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pathology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: underactive thyroid, low thyroid

Antonyms: hyperthyroidism

Broader terms: dysthyroidism

2

noun

Meaning 2

an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: hyperthyroidism

Broader terms: glandular disease, gland disease, glandular disorder, adenosis

Narrower terms: myxedema, myxoedema, cretinism

History

Etymology

Etymology tree Proto-Indo-European *upó Ancient Greek ῠ̔πό (hŭpó) Ancient Greek ὑπο- (hupo-)der. English hypo- Proto-Indo-European *dhwer-der. Proto-Hellenic *thurā Ancient Greek θῠ́ρᾱ (thŭ́rā) Ancient Greek -εος (-eos) Ancient Greek θῠρεός (thŭreós) Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Ancient Greek θῠρεοειδής (thŭreoeidḗs)bor. New Latin thyreoīdēsbor. English thyroid Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ισμός (-ismós)der. English -ism English hypothyroidism Coined c. between 1900 and 1905 from hypo- (“under”) + thyroid + -ism.

Across languages

Translations

30 source translations are retained for this English entry.

  • Arabic: قُصُور اَلدَّرَقِيَّة (quṣūr ad-daraqiyya) — disease state
  • Catalan: hipotiroïdisme — disease state
  • Chinese Mandarin: 甲狀腺功能減退症 /甲状腺功能减退症 (jiǎzhuàngxiàn gōngnéng jiǎntuì zhèng) — disease state
  • Chinese Mandarin: 甲狀腺功能減退 /甲状腺功能减退 (jiǎzhuàngxiàn gōngnéng jiǎntuì) — disease state
  • Chinese Mandarin: 甲減 /甲减 (jiǎjiǎn) — disease state
  • Czech: hypotyreóza — disease state
  • Esperanto: hipotiroidismo — disease state
  • Estonian: kilpnäärme alatalitlus — disease state
  • Estonian: hüpotüreoos — disease state
  • Finnish: kilpirauhasen vajaatoiminta — disease state
  • French: hypothyroïdisme — disease state
  • German: Hypothyreose — disease state
  • Greek: υποθυρεοειδισμός (ypothyreoeidismós) — disease state
  • Hebrew: תת פעילות של בלוטת התריס (tat peilut shel balutat hatris) — disease state
  • Hungarian: pajzsmirigy-alulműködés — disease state
  • Irish: hipitíoróideacht — disease state
  • Italian: ipotiroidismo — disease state
  • Japanese: 甲状腺機能低下症 (kōjōsen kinō teikashō) — disease state
  • Korean: 갑상샘저하증 (gapsangsaemjeohajeung) — disease state
  • Polish: niedoczynność tarczycy — disease state
  • Portuguese: hipotiroidismo — disease state
  • Russian: гипотирео́з (gipotireóz) — disease state
  • Serbo-Croatian: хипотироидизам — disease state
  • Serbo-Croatian: хипотиреоза — disease state
  • Serbo-Croatian: hipotiroidizam — disease state
  • Serbo-Croatian: hipotireoza — disease state
  • Spanish: hipotiroidismo — disease state
  • Swedish: hypotyreos — disease state
  • Vietnamese: sự giảm hoạt động của tuyến giáp — disease state
  • Welsh: isthyroidedd — disease state