Más vs. Mejor in Spanish — Comparative AdjectivesA2

más + adjective + que indicates that a quality appears to a greater degree: Ana es más alta que Luis. menos + adjective + que indicates the opposite: Este libro es menos interesante que el otro. The structure compares two people, things, or ideas and makes clear which has more or less of that quality. To form these ideas, the adjective maintains its basic form, just as in Descriptive Adjectives, and only the words that mark the comparison change.

Use of more and less with adjectives

Idea
Use more to say that a quality appears to a greater degree than in something else.
Use less to say that a quality appears to a lesser degree than in something else.
Place que after the comparative adjective to indicate the comparison.

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To say that two things have the same quality, use tan + adjective + como: Mi casa es tan grande como la tuya. The first element presents the quality and como introduces the second term of the comparison. This form frequently appears when comparing size, speed, price, strength, or beauty: El café está tan caliente como antes. In contrast to comparisons of difference, here neither superiority nor inferiority is expressed, but equality.

Expressing equality with tan as

Usage	Explanation
Same degree of a quality	Use tan ... as when two things have the same intensity of a quality.
Comparison of people	This pattern is used to compare people without saying that one surpasses the other.
Comparison of objects	Used for objects when you want to show equality in a specific characteristic.

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When talking about quality, results, or value in everyday life, the regular comparative is not always used. Mejor and peor replace más bueno and más malo in natural comparison: Esta mesa es mejor que la anterior, Hoy me siento peor que ayer. Más bueno only sounds normal in very literal uses or in contexts where the amount of goodness, not quality, is being compared. With food, service, movies, or work, the usual choice is mejor or peor. That same choice appears alongside Quantitative Adjectives when the contrast depends on quantity rather than quality.

Nuances of quality in daily life

Usage	Explanation
General quality	Use better to express superior quality in a global or evaluative sense.
Positive quality with base adjective	Use more good when you compare with a normal adjective and not with an irregular form.
Negative quality	Use worse to express inferior quality or a less favorable result.

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Mayor and menor do not function only as general comparatives. They are used for age: Mi hermana es mayor que yo; for size or extent: La casa mayor del barrio; and for importance or rank: Un problema mayor. Menor marks the opposite value: lower age, smaller size, or lesser relevance. In some contexts, mayor and menor express a more precise difference than más grande or más pequeño, especially in formal registers and in common expressions such as de mayor a menor.

Contextual meanings of mayor and menor

Usage	Explanation
Age of people	Use mayor when talking about age to indicate more years or greater progress through life.
Age of people with fewer years	Use menor when talking about age to indicate fewer years.
Importance or size	Use mayor or menor also for size or importance depending on the context.

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There are comparisons in which que is mandatory because it connects the two terms. This occurs with forms such as mejor que, peor que, mayor que, menor que, más de, and menos de when a quantity is compared with a number: Tengo más de diez libros, Llegó menos de una hora tarde. It also appears in expressions such as antes que and después de que, where the relationship of comparison or sequence is fixed by the structure. In these cases, the word that changes the content is the comparative, not the link.

Fixed comparative expressions with que

Word	Definition
más tarde que	Means at a later time than something else.
menos de lo esperado que	Expresses a smaller amount than what was imagined or expected.
mejor que	Indicates superiority in quality compared with another option.
peor que	Indicates inferiority in quality compared with another option.
más alto que	Means greater in height compared with another person or thing.
más pequeño que	Means smaller in size compared with something else.
tan rápido como	Expresses equality of speed between two elements.
tan raro como	Expresses equality in strangeness or extravagance.
más útil que	Indicates greater usefulness compared with something else.
menos caro que	Indicates a lower price compared with another option.

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Some comparatives change to agree with the noun or subject, while others remain fixed. Mayor and menor agree when they come before a noun: las ciudades mayores, los problemas menores. By contrast, mejor and peor usually function as fixed forms when they describe quality: la opción mejor, el servicio peor. After Adjectival Agreement, it is useful to observe whether the word behaves like an adjective accompanying the noun or like a stable comparative form that does not change.

Agreement and fixed form of the comparative

Idea
The comparative agrees with the noun when it functions as a variable adjective.
The comparative remains fixed when the expression is already lexicalized.
The form does not change in gender or number if it acts as an adverb or fixed form.

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The choice depends on what is being compared. If the idea is quantity or intensity, más, menos, or tan usually appear: más rápido, menos caro, tan fuerte como. If the comparison concerns quality, results, or value, mejor and peor usually appear: Este plan es mejor que el otro. If the topic is age, size, or hierarchy, mayor and menor usually come in: el hermano mayor, una empresa menor. The position of the adjective can also change the nuance, as seen in Adjective Position, but the key remains what exact relationship one wants to express between the compared elements.

Choosing the appropriate nuance of the comparative

Usage	Explanation
Visible quantity	Choose more or less when what changes is the amount or intensity of a quality.
Global assessment	Choose better or worse when comparing overall quality, result, or value.
Exact equality	Choose tan ... as when you want to say two things have the same degree.

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