immutable, incipient, fecund, diaphanous, decorous: meanings and examples

Learn these 5 words from GRE Vocabulary set 34. Each entry includes a definition, example sentence, pronunciation, and synonyms. Use the interactive cards above to practice them.

1. immutable · adjective/ɪˈmjuːtəbl/

   not subject to change or variation

   The laws of physics are considered immutable, governing the universe with unwavering consistency.

   Synonyms: unchangeable, fixed, permanent

   Origin: from Latin 'immutabilis', from 'in-' meaning 'not' + 'mutabilis' meaning 'changeable'

2. incipient · adjective/ɪnˈsɪpiənt/

   in an initial stage; beginning to happen or develop

   The researchers observed incipient signs of the disease in the patient, indicating that it was still in its early stages.

   Synonyms: initial, emerging, nascent

   Origin: from Latin 'incipientem' (present participle of 'incipere' meaning 'to begin')

3. fecund · adjective/ˈfiːkənd/

   capable of producing many offspring, seeds, or new growth

   The fecund soil in the valley allowed a wide variety of plants to thrive and produce abundant fruits each season.

   Synonyms: fertile, fruitful, prolific

   Origin: The word 'fecund' originates from the Latin 'fecundus,' which means 'fruitful' or 'prolific.'

4. diaphanous · adjective/daɪˈæfənəs/

   light, delicate, and translucent

   She wore a diaphanous gown that fluttered gently in the breeze, revealing her silhouette beneath the light fabric.

   Synonyms: sheer, gauzy, translucent

   Origin: from Greek 'diaphanēs' meaning 'transparent' or 'clear', composed of 'dia-' (through) and 'phanēs' (showing)

5. decorous · adjective/ˈdɛk.ɚ.əs/

   marked by propriety and good taste in behavior manners or appearance

   The decorous behavior of the guests at the formal dinner impressed everyone in attendance.

   Synonyms: proper, seemly, respectable

   Origin: from Latin 'decorus' meaning 'becoming, seemly' and related to 'decorare' meaning 'to adorn'