How do you divide astonishing into syllables?

Astonishing divides as as-ton-ish-ing.

Which syllable is stressed in astonishing?

The second syllable (as-TON-ish-ing).

Syllables in astonishing

as·ton·ish·ing

Astonishing has four syllables. The stress falls on the second syllable.

Pronunciation	/əˈstɑnɪʃɪŋ/ 4 syllables, as-TON-ish-ing · da-DUM-da-da
Stress	Second syllable
Letters	11

To count it yourself, say astonishing slowly and listen for each vowel sound: as, ton, ish, ing. Each beat is one syllable.

How many syllables are in astonishing?: Astonishing has four syllables.
How do you divide astonishing into syllables?: Astonishing divides as as-ton-ish-ing.
Which syllable is stressed in astonishing?: The second syllable (as-TON-ish-ing).