unhindered

un- +‎ hindered

unhindered (comparative more unhindered, superlative most unhindered)

1. Not hindered, slowed, blocked or hampered.
   • 1950 May, “A Tunisian Electric Railway”, in Railway Magazine, page 335:

     Travel is enlivened not only by the mixed company of French, Berbers, Arabs, and descendants of the Mediterranean-Corsairs who sit together indiscriminately, but also by itinerant vendors of macaroons, sweetmeats and the like, who, as long as they have a travel ticket, ply their wares unhindered by the [ticket] collectors.

   • 2012 July 15, Richard Williams, Tour de France 2012: Carpet tacks cannot force Bradley Wiggins off track‎, Guardian Unlimited:

     The timing of the incident raised the question, almost certainly destined to remain unanswered, of whether, having allowed the escapers to pass by unhindered, the culprit had waited specifically for the yellow jersey group before sowing his mischief.

2. (chemistry) Pertaining to a molecule where the reactive center is not blocked from chemical attack due to the surrounding uncreative substituents not preventing reactive agents accessing the reactive site.

• hindered