Following are all the tightest like words, in the list below.
CLOSEST
100% like tightest
THINNEST
100% like tightest
TIGHTFITTING
99.99% like tightest
TIGHTENS
99.98% like tightest
TIGHTENER
99.97% like tightest
TIGHTENED
99.97% like tightest
TIGHTEN
99.96% like tightest
TIGHTENING
99.96% like tightest
STRICTEST
99.96% like tightest
TIGHTEN UP
99.95% like tightest
TIGHTKNIT
99.95% like tightest
NARROWEST
99.94% like tightest
TIGHTLIPPED
99.94% like tightest
FIRMEST
99.94% like tightest
TIGHT KNIT
99.93% like tightest
SNUGGER
99.92% like tightest
CLENCHED
99.92% like tightest
TIGHT SHIP
99.92% like tightest
STIFFEST
99.91% like tightest
SKINTIGHT
99.91% like tightest
STRAIGHTEST
99.9% like tightest
SNUGNESS
99.9% like tightest
INTENSEST
99.9% like tightest
SLIMMEST
99.89% like tightest
STERNEST
99.89% like tightest
CLOSELY
99.88% like tightest
BEST FIT
99.88% like tightest
TRUEST
99.88% like tightest
CINCHED
99.87% like tightest
TOUGHEST
99.87% like tightest
TAUTNESS
99.86% like tightest
TERSEST
99.86% like tightest
HARDEST
99.86% like tightest
STRAITENED
99.85% like tightest
CONSTRICTING
99.85% like tightest
CONSTRICTED
99.84% like tightest
SKINNIEST
99.84% like tightest
SHORTEST
99.84% like tightest
HOTTEST
99.83% like tightest
CONSTRICTIVE
99.83% like tightest
TIGHT LIPPED
99.82% like tightest
TAUTENING
99.82% like tightest
CONSTRICTION
99.81% like tightest
CLOSES
99.81% like tightest
INNERMOST
99.8% like tightest
CLOSE IN
99.8% like tightest
CONSTRICT
99.8% like tightest
NARROWED
99.79% like tightest
SNUGLY
99.79% like tightest
STRONGEST
99.78% like tightest
TAUTLY
99.78% like tightest
CRISPEST
99.78% like tightest
NARROWING
99.77% like tightest
CLENCH
99.77% like tightest
NARROWS
99.76% like tightest
EXTREMEST
99.76% like tightest
TAUTENED
99.76% like tightest
AIRTIGHT
99.75% like tightest
GASTIGHT
99.75% like tightest
STICKIEST
99.75% like tightest
BLACKEST
99.74% like tightest
PERFECTEST
99.74% like tightest
SHARPEST
99.73% like tightest
TENSEST
99.73% like tightest
SNUGGED
99.73% like tightest
CONSTRICTS
99.72% like tightest
STRICT
99.72% like tightest
CLOSENESS
99.71% like tightest
CLENCHES
99.71% like tightest
TINIEST
99.71% like tightest
SNUGGING
99.7% like tightest
TAUTEN
99.7% like tightest
TAUTOMER
99.69% like tightest
CONSTRAINING
99.69% like tightest
CONSTRICTIONS
99.69% like tightest
RESTRICTIVE
99.68% like tightest
CLOSER
99.68% like tightest
NARROWER
99.67% like tightest
LEANEST
99.67% like tightest
SLICKEST
99.67% like tightest
CLENCHING
99.66% like tightest
SMALLEST
99.66% like tightest
MINUTEST
99.65% like tightest
DENSEST
99.65% like tightest
CLINCHES
99.65% like tightest
DRYEST
99.64% like tightest
CRAMPED
99.64% like tightest
NARROW
99.63% like tightest
STRICTNESS
99.63% like tightest
SQUEEZING
99.63% like tightest
CONSTRAINED
99.62% like tightest
TIGHTROPE
99.62% like tightest
FITTEST
99.61% like tightest
CLOSABLE
99.61% like tightest
SCARIEST
99.61% like tightest
INTIMATE
99.6% like tightest
PACKING
59.76% like tightest
JEANS
59.75% like tightest
SQUEEZE
59.75% like tightest
TOLERANCES
59.75% like tightest