How to Say "to loathe" in Spanish
The most common Spanish word for “to loathe” is “odiar” — use 'odiar' when you want to express intense, deep-seated hatred or a very strong aversion to something or someone.
odiar
oh-dee-ahroˈðjaɾ

Examples
Odio tener que esperar en filas largas.
I hate having to wait in long lines.
Odio levantarme temprano los lunes.
I hate getting up early on Mondays.
Ella odia la injusticia en el mundo.
She hates injustice in the world.
No te odio, solo estoy decepcionado.
I don't hate you, I'm just disappointed.
The 'Personal A'
When you hate a specific person or pet, you must put the word 'a' after 'odiar'. Example: 'Odio a ese personaje' (I hate that character).
Using Actions
To say you hate doing something, use the base form of the second verb (the one ending in -ar, -er, or -ir). Example: 'Odio cocinar' (I hate cooking).
Too much 'A'
Mistake: “Odio a la lluvia.”
Correction: Odio la lluvia. Don't use 'a' for objects or concepts, only for people or personified pets.
detestar
deh-tehs-TARdetesˈtaɾ

Examples
Detesto la falta de respeto en el transporte público.
I detest the lack of respect on public transport.
Detesto el olor del tabaco.
I detest the smell of tobacco.
Ella detesta llegar tarde a las citas.
She hates arriving late to appointments.
Detesto que me interrumpan cuando estoy trabajando.
I hate being interrupted when I am working.
Using 'Personal A'
When the thing you hate is a specific person or a pet, you must put the word 'a' before them. For example: 'Detesto a ese actor' (I detest that actor).
Expressing Opinions with 'Que'
When you say 'Detesto que...' to talk about someone else's actions, the following verb needs a special 'subjunctive' ending. Example: 'Detesto que grites' (I hate that you shout).
Don't use it like 'Gustar'
Mistake: “Me detesta el brócoli.”
Correction: Detesto el brócoli. 'Detestar' follows the same pattern as English 'I hate' (I do the hating), unlike 'Gustar' which flips the subject.
Odiar vs. Detestar Intensity
Related Translations
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