The phrase 'if not unexpected' is correct and usable in written English.
You can use it when you are speaking hypothetically about an event that is not likely to occur or has previously been deemed unlikely. For example, "If not unexpected, I'll be able to finish the project by tomorrow."
Imagined in poignant if not unexpected ways, Lincoln appears throughout the book in various capacities.
The first lady's couture selection was an exceptional, if not unexpected, choice by a woman adapting the role to fit herself.
It was a devastating, if not unexpected, loss for public-employee unions, the most vital component of organized labor and a major player in Democratic Party politics.
Brett Gardner, Randy Winn and Nick Swisher have fueled victories in the last week, and Teixeira's assumption of a starring role came as a welcome, if not unexpected, surprise.
And in a soliloquy that was unplanned if not unexpected to Biden advisers — rarely do the garrulous former senator's private views remain private for very long — he openly gave voice to both concerns last week.
Since the department had always publicly said that it wasn't stopping the money but merely moving it to local authorities in the name of efficiency, this information was certainly new, if not unexpected.
Based on P1f's predominantly peripheral localization in keratinocytes (Fig. 3a), fibroblasts, and myofibers (see below), a role of this isoform in actin-network regulation (Andrä et al. 1998), in addition to its IF-anchoring function, is not unexpected.
If creativity was not unexpected, governments could plan it and socialism would work.
This value of zero is not unexpected; if the InChI successfully canonicalises the structure, the corresponding Inchified SMILES will also be canonical as a particular InChI will always yield the same Inchified SMILES.
Inbreeding coefficients did increase steadily over the analyzed years which is not unexpected if breeders continue to select the better hipped dogs for breeding.
The absence of detectable transport changes despite decreases in organelle number in axons is not unexpected if, as observed, anchored organelles are stationary for long periods relative to their rapid movement when they are "on track".
