Hamilton only qualified 13th at Zandvoort after struggling to replicate his early Friday pace in his Mercedes W14.
The seven-time world champion was caught out by several drivers blocking him on his flying laps, first by both Aston Martins in Q1 and then by AlphaTauri's Yuki Tsunoda in Q2.
But afterwards, Hamilton conceded that his Mercedes was just too slow regardless of traffic, missing the cut to Logan Sargeant's Williams in 10th by a mere 0.084s.
"It didn't make any difference," Hamilton replied when his moment with Tsunoda had cost him a spot in Q3.
"A few of the others got in the way on the previous laps. Tsunoda was in the way a little bit, but it didn't lose me time. I was just slow today."
Hamilton had already flagged on Friday night that the car had gone in the wrong direction from an encouraging FP1 to a more difficult FP2.
Overnight work on the set-up did not allow Hamilton to regain the feeling he had in the car on Friday morning, while team-mate George Russell qualified third with a last-ditch effort.
"Honestly, the car didn't feel too great after P2," Hamilton explained.
"It felt great in P1 and I've just not had that feeling ever since, so not really sure what it is.
"It's just... the car has been difficult. I'll try and turn the negative from today to a positive tomorrow. I'm too far from enough for a podium probably."
Source: Autosport