Caley Thistle drew their fifth game in succession after a 0-0 Championship stalemate against Alloa Athletic at Recreation Park.
Inverness were short of their best against a spirited Wasps side, who came closest to a breakthrough 14 minutes from time when Dario Zanatta struck the crossbar.
The result leaves the Highlanders in fifth place, seven points adrift of leaders Ross County.
Inverness made two changes from the side that drew 1-1 against Dundee United the previous weekend, with Aaron Doran and Jamie McCart drafted in to replace Riccardo Calder and the suspended Coll Donaldson.
Alloa, who secured their first league win of the campaign against Partick Thistle the previous weekend, started brightly with Dario Zanatta particularly lively, nodding Connor Shields’ cross wide before seeing a low drive held by Mark Ridgers within the opening minute.
Alloa continued to create the more dangerous openings, with Kevin Cawley once again forcing Ridgers into action with a low drive that was palmed away on 12 minutes.
Inverness struggled to threaten the home side, with their first attempt arriving on 26 minutes when Tom Walsh saw a sidefooted effort comfortably held by Neil Parry.
Caley Jags were dealt a blow on 32 minutes when skipper Carl Tremarco limped off injured following a break upfield, with Calder brought on as his replacement.
Alloa had further chances before half time, with Jon Robertson playing in Shields who blazed over on 40 minutes, before Alan Trouten saw a lobbed effort drift just over.
Despite being on the backfoot Caley Jags had a glorious chance to open the scoring just before the interval, with Mckay sidefooting wide from Joe Chalmers’ corner.
Caley Jags threatened from distance early in the second half, with Chalmers and Liam Polworth off target, however Alloa were inches from a breakthrough on 76 minutes when Zanatta struck the underside of the crossbar with a powerful strike.
The visitors finished the match strongly, with Chalmers seeing a free kick deflected inches wide, before Parry had to show sharp reflexes to thwart substitute Daniel MacKay from close range, however there was no breakthrough.