impermeable vs tight

impermeable and tight both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impermeable	No	Yes	No	No
tight	No	Yes	No	Yes

impermeable (adjective)	tight (adjective)
preventing especially liquids to pass or diffuse through	closely constrained or constricted or constricting
	of such close construction as to be impermeable
	pressed tightly together
	packed closely together
	demanding strict attention to rules and procedures
	exasperatingly difficult to handle or circumvent
	(of a contest or contestants) evenly matched
	of textiles
	very drunk
	set so close together as to be invulnerable to penetration
	affected by scarcity and expensive to borrow
	securely or solidly fixed in place; rigid
	(used of persons or behavior) characterized by or indicative of lack of generosity
	pulled or drawn tight

impermeable (adverb)	tight (adverb)
	firmly or closely
	in an attentive manner