Adjectives with Shifting Vowels: קטן, לבן, ישן

קָטָן, לָבָן, יָשָׁן, זָקֵן, שָׁמֵן — a large family of everyday adjectives built on two short vowels, and they get a page of their own because the first of those vowels does not survive inflection. katán has two syllables; קְטַנָּה ktaná has two as well, but not the same two: the first vowel is gone and the ק leans straight onto the ט. The endings and the agreement are the ordinary ones from adjective endings; what is special here is entirely in the sound, and none of it is written down.

One thing to clear up first, because the label often attached to this class is wrong: these are not the מֶלֶךְ / סֵפֶר / בּוֹקֶר word type, which is stressed on the first syllable and behaves completely differently. קָטָן and לָבָן are stressed on the last syllable like nearly every Hebrew word, and they show the ordinary reduction of stem changes — landing where the lost vowel was the only thing holding the first syllable together.

The main pattern: two a's, and the first one goes

Read the transcriptions across, not down. The masculine singular is ka-TAN; everything else is kta-NA, kta-NIM, kta-NOT, with no vowel at all between the ק and the ט. לבן and ישן keep a small e there — levaná, yeshaná — because those two consonant pairs are harder to run together than kt. Which words lose the vowel outright and which keep a trace of it is a tendency, not a line you can draw, and it goes word by word; the shva sets out what Israelis actually do.

The same shape with a tsere: זקן, שמן

A second group has an e where קטן has its second a. It behaves identically — first vowel out, ending stressed — and is listed separately only because the vowel you keep is a different one.

The third column is the one to stare at. יָשָׁן "old" and יָשֵׁן "asleep" are both spelled ישן, and their feminines — יְשָׁנָה and יְשֵׁנָה — are both spelled ישנה. A car is yeshaná, a baby is yeshená, and nothing on the page says which you are looking at.

When the first letter is a guttural, the vowel stays audible

א, ה, ח and ע cannot carry a bare shva. Where the pattern calls for one they take a chataf — a very short vowel — so the reduction happens but the syllable survives, and the word keeps its syllable count.

חדש works the same way — חָדָשׁ, חֲדָשָׁה, חֲדָשִׁים — and so does אָדוֹם among the colour adjectives. The rule is about the letter, not the word, so it is predictable: if the adjective starts with one of those four, the first syllable will not vanish.

The one-syllable adjectives do the opposite

חַם, קַר, רַע and a handful of others have nothing to reduce — one syllable, one vowel. Instead of losing a vowel they double the final consonant, and the vowel in front of it stays exactly where it was.

The doubling is written as a dagesh, and ktiv male never shows a dagesh, so for a reader nothing happens: חם simply becomes חמה, חמים, חמות. Look at the pointed cells, though, and only חם actually doubles: ר and ע cannot carry a dagesh, so קר and רע stretch the patach into a kamatz instead — קָרָה, רָעָה, against חַמָּה. Israeli Hebrew geminates nothing and reads both vowels as a, so all three sound alike; the difference lives in the pointing. For a speaker the point is that there is no cluster here. It is khamá, with the a intact — and a learner drilled on ktaná will over-apply the reduction to this group unless somebody says so.

Why it is worth learning as one thing

None of this is an adjective quirk. The same vowel loss runs through the noun plurals — דָּבָר davár → דְּבָרִים dvarím, מָקוֹם makóm → מְקוֹמוֹת mekomót — and through the verb, where שׁוֹמֵר shomér gives שׁוֹמְרִים shomrím and כָּתַב katáv gives כָּתְבוּ katvú. Every one of those is the same event: an ending takes the stress, and a vowel now too far from it collapses. Learn it here and you have most of plural stem changes and a good deal of the verb tables for free.

One small irregularity, flagged rather than hidden: קטן doubles its final נ when it inflects — קְטַנָּה, קְטַנִּים, with a dagesh — where לבן does not (לְבָנָה, לְבָנִים). Pealim marks it as a property of that one word. As with חם above, it changes nothing you say — only the pointing, a patach under the ט rather than a kamatz, which is why a pointed text looks unlike what you would predict.

Common Mistakes

1. Keeping the citation vowel in the feminine. You learned katán, so the feminine comes out katána. Nothing in the writing corrects you, because קטנה is the spelling either way — this is a mistake you can only hear.

2. A full vowel in the plural. The plural is where it is most audible, because the word is longer and the extra syllable stands out.

3. Over-applying the reduction to a guttural. Once the rule clicks, the temptation is to run it everywhere — and א, ה, ח and ע will not have it.

4. Reading ישנה as the wrong word. Two adjectives, one spelling, and only the noun tells you which — so the reading has to be decided before you open your mouth.

Key Takeaways

• קָטָן → קְטַנָּה, קְטַנִּים, קְטַנּוֹת. The first vowel is not weakened, it is gone: katán but ktaná, ktaním, ktanót.
• The same happens to לָבָן → לְבָנָה, יָשָׁן → יְשָׁנָה, and to the tsere group זָקֵן → זְקֵנָה, שָׁמֵן → שְׁמֵנָה.
• א, ה, ח, ע take a chataf instead, so the syllable survives: חָכָם → חֲכָמָה khakhamá, three syllables, not khkhamá.
• The one-syllable adjectives keep their vowel rather than reducing: חַם → חַמָּה, חַמִּים; קַר → קָרָה, קָרִים; רַע → רָעָה, רָעִים. חם doubles its final consonant; קר and רע cannot, because ר and ע take no dagesh, and lengthen the patach to a kamatz instead. No cluster, no vowel loss either way.
• None of it is visible in unpointed writing, so every error in this class is an error of pronunciation. kataním with a full first vowel is one of the most persistent markers of a foreign accent in Hebrew.
• ישן is two adjectives — yashán "old" and yashén "asleep" — with one spelling and one feminine spelling, ישנה. The noun decides.