Yes, "instant" is pronounced with first-syllable stress. The emphasis is on the "in" syllable.
The first syllable in "instant" is stressed: IN-stant.
The first syllable in "dangerous" is stressed.
Saunter is stressed on the first syllable.
District is stressed on the first syllable.
The stressed syllable in "injure" is the first syllable "in-".
The first syllable is stressed: "INstant"
Instant is stressed on the first syllable.
Instant is stressed on the first syllable. In-stant.
The first syllable in "instant" is stressed: IN-stant.
INstant (the first syllable)
INstant (the first syllable)
Instant is stressed on the first syllable. In-stant.
The first syllable
The first.
The first.
Footprint is stressed on the first syllable.
Captive is stressed on the first syllable.