Here's an overview of Russian comparatives and superlatives. On separate pages you'll find a full overview and declensions of Russian adjectives.
Like in English, you simply can say a subject is more or less some normal adjective form than something else. This method is not too common in Russian, though, and you'd do well not to rely on it, however easy it is to use.
You will need to use this comparative compound form when the adjective must be declined.
The comparative adjectival form is the most common way to compare things in Russian. To build the comparative form, simply drop the gender ending from the normal adjective form and add "ее" or "е" to the stem. This comparative adjective form is indeclinable and can also be used as a comparative adverb.
(i) If the adjective stem ends in н, л, р, п, б, м, в - you add “ее:”
(ii) If the adjective stem ends in г, к, х, or д, т, ст, - the stem consonant will undergo an alternation and you add just one "е:"
For stems ending in -г, -к, -х, the final consonant is replaced by -ж, -ч, -ш, respectively.
Stems ending in ст are replaced by -щ.
The third way to describe comparisons in Russian is the same as the first two methods, except that you omit the word, "чем," and put the second noun in the genitive case. Please note that the word order of the nouns in such sentences is important.
Superlative adjectives indicate that something is the most or best at something. There are three ways to form the superlative in Russian.
To form the compound superlative, all you need to do is add the words "most" or "least" in front of the normal adjective form. "самый" is the most common word for this.
The simple superlative form is a modification of the normal adjective and is often used in official Russian or colloquially to express a personal opinion.
To form the simple superlative, for most adjectives add the suffix "ейш" to the stem.
Adjectives ending in the consonants г, к, and x change to the consonants, ж, ч, and ш, respectively, and the suffix "айш" is added instead.
You can also form the superlative by using the comparative adjective form and adding всех / всего (of all, of anything).