• (GA) IPA: /ˈmɑnstɹəs/
• (RP) IPA: /ˈmɒnstɹəs/

monstrous

1. Hideous or frightful.
   • c. 1596–1599, William Shakespeare, “The Second Part of Henry the Fourth, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act III, scene iii]:

     So bad a death argues a monstrous life.

2. Enormously large.

   a monstrous height

   a monstrous ox

3. Freakish or grotesque.
   • 1689 (indicated as 1690)​, [John Locke], chapter 3, in An Essay Concerning Humane Understanding. […], London: […] Thomas Basset, […], OCLC 153628242 ↗:

     The irregular and monstrous births

   • 1650, Jeremy Taylor, The rule and exercises of holy living

     He, therefore, that refuses to do good to them whom he is bound to love […] is unnatural and monstrous in his affections.

4. Of, or relating to a mythical monster; full of monsters.
   • 1637, John Milton, “Lycidas”, in Poems of Mr. John Milton, […] , London: Printed by Ruth Raworth for Humphrey Moſely,  […], published 1645, OCLC 606951673 ↗:

     Where thou, perhaps, under the whelming tide / Visitest the bottom of the monstrous world.

5. (obsolete) Marvellous; strange.

• See also Thesaurus:gigantic

• French: monstrueux
• German: ungeheuerlich, monströs
• Italian: mostruoso
• Portuguese: monstruoso
• Russian: чудо́вищный
• Spanish: monstruoso

• French: monstrueux
• German: monströs
• Italian: enorme, gigantesco
• Portuguese: monstruoso, gigantesco, gigante, enorme
• Russian: чудо́вищный
• Spanish: monstruoso

• Portuguese: monstruoso
• Spanish: monstruoso

• Russian: чудо́вищный
• Spanish: monstruoso