14 letters
- supersexuality29
- supersonically26
- superspectacle28
- superstimulate23
- superstrengths23
- superstructure23
- supersymmetric29
- superthrillers22
- supervirtuosos23
- supplantations24
- supportability27
- supportiveness26
- supposititious22
- supramolecular27
- suprasegmental25
- surefootedness20
- susceptibility27
- susceptiveness26
- susceptivities25
- suspiciousness23
- sustainability22
- treasurerships20
- trisubstituted20
- tsutsugamushis24
- unassumingness24
- underexposures28
- unsuccessfully31
- unsurprisingly26
- unsuspectingly29
- usufructuaries24
- usuriousnesses18
- visualizations30