Adjective:

न समझने योग्य, पुष्टक्रूर, दुष्कर, संगीन, सख़्त, दृढ़, ठोस, कड़ा, कठिन,

Adverb:

कठिनता से,

harder's Usage Examples:

Destiny cried harder, clinging to her hands and trying to get back into her arms.

But when I took up algebra I had a harder time still.

At least, he was finding it harder to resist her strange magic every time they met.

The air around him was even harder to breathe.

The longer you let both deny you, the harder it becomes to win.

The mortar on them was fifty years old, and was said to be still growing harder; but this is one of those sayings which men love to repeat whether they are true or not.

You were a lot harder to read.

The longer she sat, the harder it seemed to get up.

I pushed harder, as strongly as I could, with the same results.

It's harder than I thought.

Synonyms:

rough, delicate, catchy, ambitious, ticklish, tall, difficulty, tight, herculean, sticky, elusive, effortful, baffling, fractious, troublesome, awkward, unenviable, trying, nasty, vexed, problematic, hard-fought, difficultness, arduous, tricky, embarrassing, rocky, knotty, challenging, touchy, difficult, rugged, demanding, problematical, thorny, tough, serious,

Antonyms:

frivolity, undemanding, easy, effortless, ease,