The phrase "alternatively hard" is correct and usable in written English.
It can be used when presenting an alternative option that is difficult or challenging in comparison to another option.
Example: "You can choose the easy route, or alternatively hard, the more challenging path that offers greater rewards."
Alternatives: "on the other hand difficult" or "instead challenging".
Lamellar stacks, arranged alternatively with hard crystal and soft amorphous nano-layers, are the basic building units to determine the intrinsic mechanical properties of semi-crystalline polymeric materials.
Firstly, by introducing the tight frame constraint into the popular dictionary learning model, the proposed tight frame learning model could be formulated as a nonconvex optimization problem which can be solved by alternatively implementing hard thresholding operation and singular value decomposition.
Alternatively, the hard outer casing of peridioles ejected from splash cups may simply disintegrate over time, eventually releasing the spores within.
Three of his former employees told The Post that Nix was, alternatively, a hard-charger, a bully, a mentor, an idea man, charming, a phony and the real deal.
Or alternatively, make a hard left to look for a case of antique rings -- Hunnish, Spanish, Merovingian -- at Les Enluminures, and a mint's worth of old British silver at S. J. Shrubsole.
Alternatively, make it harder for others to seize your focus: AwayFind.com offers ingenious ways to make it slightly more laborious to email you on holiday, so people won't do so lightly.
Alternatively, they learn the hard way, by ending up in the wrong place.
Alternatively, it was very hard for a user to restrict the motion of his eye entirely one access.
I bash my head frequently, alternatively grateful for my hard hat and cursing it for falling down over my eyes and obscuring my view of obstacles.
Perhaps as a measure of how little he is known, he is alternatively described as a hard-liner and as a man able to compromise.
