Extremely small, typically used in scientific contexts to describe particles or objects not visible to the naked eye.

Often used colloquially to emphasize something being very small or minute.

अत्यंत सूक्ष्म

English Usage: The ultramicroscopic particles in the air can only be analyzed with specialized equipment.

Hindi Usage: हवा में मौजूद अत्यंत सूक्ष्म कणों का विश्लेषण केवल विशेष उपकरणों से किया जा सकता है।

Used humorously to describe anything perceived as overly complicated or small.

अत्यंत जटिल

English Usage: The instructions were so ultramicroscopic that I couldn't follow them at all.

Hindi Usage: निर्देश इतनी अत्यंत जटिल थे कि मैं उन्हें बिल्कुल नहीं समझ सका।