Difference between Seldom and Hardly

SELDOM vs HARDLY: ADJECTIVE

Not softly or tenderly; roughly; severely; unfavorably; inimically.
By hard work; with difficulty.
Not quite or completely; only approximately; scarcely: as, it is hardly strong enough; that is hardly true.
Barely; narrowly; almost not at all: as, hardly any; hardly ever.
Not probably; with little likelihood: as, he will hardly come to-day.
Slowly and with difficulty

Uncommonly, Sparsely, Barely, Not, Rare, Sparingly, Commonly, Scarcely, Hardly, Occasionally, Never, Frequently, Infrequently, Often, Rarely

Simply, Merely, Almost, Probably, Little, Only, Practically, Surely, Not, Rarely, Seldom, Scarce, Just, Barely, Scarcely

Ever, Uncommonly, Sparsely, Barely, Not, Rare, Commonly, Scarcely, Hardly, Occasionally, Never, Frequently, Infrequently, Often, Rarely

Simply, Merely, Almost, Probably, Little, Only, Practically, Surely, Not, Rarely, Seldom, Scarce, Just, Barely, Scarcely

An Android application is seldom just source code.
Marines had seldom operated from a sea base.
The issue is evidently seldom raised outside Missouri.
Don was a hard worker who seldom complained.
Actual conflicts arise fairly seldom, but are possible.
Important things are seldom urgent and urgent things are seldom important.
Quintus Ennius p The important is seldom urgent; the urgent is seldom important.
Honestly, I seldom use this second approach, because I seldom include dates without a border row, as shown below.
Laws too gentle are seldom obeyed; too severe, seldom executed.
And consideration are both derived from human communication seldom openly discussed and more seldom written about Merck.

However, Nate Diaz is hardly an active competitor.
Nick hardly ever did the dirty work himself.
Summer arrived, and I could hardly do anything.
For big gears like this it hardly matters.
Hardly petite fille bresil huarascan peru water evenwicht?
Natasha hardly felt any effect from the champagne.
Incidentally, the cotton was hardly by free enterprise.
Blunt and direct, she was hardly a pushover.
Prior to the housing bubble in America, voluntary foreclosures were hardly used, and the phrase itself was hardly mentioned.
We hardly throw away expired food cause we hardly have any around.